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Finding the Fourth Proportional to 635,856.92, 876,880.10 and 417,681.80

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Solution

The fourth proportional to 635,856.92, 876,880.10 and 417,681.80 is: 576,005.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,856.92 : 876,880.10 = 417,681.80 : x
  2. Step 2: Convert to fraction form
    635,856.92/876,880.10 = 417,681.80/x
  3. Step 3: Cross multiply
    635,856.92x = 876,880.10 × 417,681.80
  4. Step 4: Simplify right side
    635,856.92x = 366,256,858,552.18
  5. Step 5: Solve for x
    x = 366,256,858,552.18/635,856.92
  6. Step 6: Final answer
    x = 576,005.15

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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.