Home / 1,386,548.42-1,913,535.86-766,340.28

Finding the Fourth Proportional to 1,386,548.42, 1,913,535.86 and 766,340.28

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Solution

The fourth proportional to 1,386,548.42, 1,913,535.86 and 766,340.28 is: 1,057,604.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,548.42 : 1,913,535.86 = 766,340.28 : x
  2. Step 2: Convert to fraction form
    1,386,548.42/1,913,535.86 = 766,340.28/x
  3. Step 3: Cross multiply
    1,386,548.42x = 1,913,535.86 × 766,340.28
  4. Step 4: Simplify right side
    1,386,548.42x = 1,466,419,602,910.74
  5. Step 5: Solve for x
    x = 1,466,419,602,910.74/1,386,548.42
  6. Step 6: Final answer
    x = 1,057,604.33

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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.