Home / 1,428,419.32-2,142,587.42-417,565.02

Finding the Fourth Proportional to 1,428,419.32, 2,142,587.42 and 417,565.02

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Solution

The fourth proportional to 1,428,419.32, 2,142,587.42 and 417,565.02 is: 626,335.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,419.32 : 2,142,587.42 = 417,565.02 : x
  2. Step 2: Convert to fraction form
    1,428,419.32/2,142,587.42 = 417,565.02/x
  3. Step 3: Cross multiply
    1,428,419.32x = 2,142,587.42 × 417,565.02
  4. Step 4: Simplify right side
    1,428,419.32x = 894,669,558,884.05
  5. Step 5: Solve for x
    x = 894,669,558,884.05/1,428,419.32
  6. Step 6: Final answer
    x = 626,335.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.