Home / 781,353.04-1,078,216.20-437,130.16

Finding the Fourth Proportional to 781,353.04, 1,078,216.20 and 437,130.16

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Solution

The fourth proportional to 781,353.04, 1,078,216.20 and 437,130.16 is: 603,211.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,353.04 : 1,078,216.20 = 437,130.16 : x
  2. Step 2: Convert to fraction form
    781,353.04/1,078,216.20 = 437,130.16/x
  3. Step 3: Cross multiply
    781,353.04x = 1,078,216.20 × 437,130.16
  4. Step 4: Simplify right side
    781,353.04x = 471,320,820,020.59
  5. Step 5: Solve for x
    x = 471,320,820,020.59/781,353.04
  6. Step 6: Final answer
    x = 603,211.09

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.