Home / 1,425,124.86-1,966,602.42-780,547.92

Finding the Fourth Proportional to 1,425,124.86, 1,966,602.42 and 780,547.92

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Solution

The fourth proportional to 1,425,124.86, 1,966,602.42 and 780,547.92 is: 1,077,117.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,124.86 : 1,966,602.42 = 780,547.92 : x
  2. Step 2: Convert to fraction form
    1,425,124.86/1,966,602.42 = 780,547.92/x
  3. Step 3: Cross multiply
    1,425,124.86x = 1,966,602.42 × 780,547.92
  4. Step 4: Simplify right side
    1,425,124.86x = 1,535,027,428,397.97
  5. Step 5: Solve for x
    x = 1,535,027,428,397.97/1,425,124.86
  6. Step 6: Final answer
    x = 1,077,117.85

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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.