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Finding the Fourth Proportional to 1,038,294, 1,432,845.80 and 561,366

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Solution

The fourth proportional to 1,038,294, 1,432,845.80 and 561,366 is: 774,685.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,294 : 1,432,845.80 = 561,366 : x
  2. Step 2: Convert to fraction form
    1,038,294/1,432,845.80 = 561,366/x
  3. Step 3: Cross multiply
    1,038,294x = 1,432,845.80 × 561,366
  4. Step 4: Simplify right side
    1,038,294x = 804,350,915,362.80
  5. Step 5: Solve for x
    x = 804,350,915,362.80/1,038,294
  6. Step 6: Final answer
    x = 774,685.12

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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.