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Finding the Fourth Proportional to 1,145,947.04, 1,581,314.24 and 662,543.20

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Solution

The fourth proportional to 1,145,947.04, 1,581,314.24 and 662,543.20 is: 914,256.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,947.04 : 1,581,314.24 = 662,543.20 : x
  2. Step 2: Convert to fraction form
    1,145,947.04/1,581,314.24 = 662,543.20/x
  3. Step 3: Cross multiply
    1,145,947.04x = 1,581,314.24 × 662,543.20
  4. Step 4: Simplify right side
    1,145,947.04x = 1,047,688,996,775.17
  5. Step 5: Solve for x
    x = 1,047,688,996,775.17/1,145,947.04
  6. Step 6: Final answer
    x = 914,256.03

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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.