Home / 781,345.04-1,078,205.16-437,122.16

Finding the Fourth Proportional to 781,345.04, 1,078,205.16 and 437,122.16

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Solution

The fourth proportional to 781,345.04, 1,078,205.16 and 437,122.16 is: 603,200.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,345.04 : 1,078,205.16 = 437,122.16 : x
  2. Step 2: Convert to fraction form
    781,345.04/1,078,205.16 = 437,122.16/x
  3. Step 3: Cross multiply
    781,345.04x = 1,078,205.16 × 437,122.16
  4. Step 4: Simplify right side
    781,345.04x = 471,307,368,462.35
  5. Step 5: Solve for x
    x = 471,307,368,462.35/781,345.04
  6. Step 6: Final answer
    x = 603,200.05

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Double scale
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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.