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Finding the Fourth Proportional to 1,038,302, 1,432,856.80 and 561,374

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Solution

The fourth proportional to 1,038,302, 1,432,856.80 and 561,374 is: 774,696.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,302 : 1,432,856.80 = 561,374 : x
  2. Step 2: Convert to fraction form
    1,038,302/1,432,856.80 = 561,374/x
  3. Step 3: Cross multiply
    1,038,302x = 1,432,856.80 × 561,374
  4. Step 4: Simplify right side
    1,038,302x = 804,368,553,243.20
  5. Step 5: Solve for x
    x = 804,368,553,243.20/1,038,302
  6. Step 6: Final answer
    x = 774,696.14

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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.