Home / 781,451.32-1,078,448.02-437,284.24

Finding the Fourth Proportional to 781,451.32, 1,078,448.02 and 437,284.24

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Solution

The fourth proportional to 781,451.32, 1,078,448.02 and 437,284.24 is: 603,477.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,451.32 : 1,078,448.02 = 437,284.24 : x
  2. Step 2: Convert to fraction form
    781,451.32/1,078,448.02 = 437,284.24/x
  3. Step 3: Cross multiply
    781,451.32x = 1,078,448.02 × 437,284.24
  4. Step 4: Simplify right side
    781,451.32x = 471,588,322,805.21
  5. Step 5: Solve for x
    x = 471,588,322,805.21/781,451.32
  6. Step 6: Final answer
    x = 603,477.54

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Double scale
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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.