Home / 1,125,340.71-1,688,008.56-869,545.23

Finding the Fourth Proportional to 1,125,340.71, 1,688,008.56 and 869,545.23

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Solution

The fourth proportional to 1,125,340.71, 1,688,008.56 and 869,545.23 is: 1,304,315.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,340.71 : 1,688,008.56 = 869,545.23 : x
  2. Step 2: Convert to fraction form
    1,125,340.71/1,688,008.56 = 869,545.23/x
  3. Step 3: Cross multiply
    1,125,340.71x = 1,688,008.56 × 869,545.23
  4. Step 4: Simplify right side
    1,125,340.71x = 1,467,799,791,547.17
  5. Step 5: Solve for x
    x = 1,467,799,791,547.17/1,125,340.71
  6. Step 6: Final answer
    x = 1,304,315.91

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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.