Home / 1,133,622.45-1,564,569.05-861,242.13

Finding the Fourth Proportional to 1,133,622.45, 1,564,569.05 and 861,242.13

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Solution

The fourth proportional to 1,133,622.45, 1,564,569.05 and 861,242.13 is: 1,188,643.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133,622.45 : 1,564,569.05 = 861,242.13 : x
  2. Step 2: Convert to fraction form
    1,133,622.45/1,564,569.05 = 861,242.13/x
  3. Step 3: Cross multiply
    1,133,622.45x = 1,564,569.05 × 861,242.13
  4. Step 4: Simplify right side
    1,133,622.45x = 1,347,472,781,154.08
  5. Step 5: Solve for x
    x = 1,347,472,781,154.08/1,133,622.45
  6. Step 6: Final answer
    x = 1,188,643.35

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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.