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Finding the Fourth Proportional to 440,460.88, 607,921.20 and 287,233.04

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Solution

The fourth proportional to 440,460.88, 607,921.20 and 287,233.04 is: 396,437.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,460.88 : 607,921.20 = 287,233.04 : x
  2. Step 2: Convert to fraction form
    440,460.88/607,921.20 = 287,233.04/x
  3. Step 3: Cross multiply
    440,460.88x = 607,921.20 × 287,233.04
  4. Step 4: Simplify right side
    440,460.88x = 174,615,054,356.45
  5. Step 5: Solve for x
    x = 174,615,054,356.45/440,460.88
  6. Step 6: Final answer
    x = 396,437.15

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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.