Home / 674,543.10-1,010,502.45-407,510.40

Finding the Fourth Proportional to 674,543.10, 1,010,502.45 and 407,510.40

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Solution

The fourth proportional to 674,543.10, 1,010,502.45 and 407,510.40 is: 610,472.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,543.10 : 1,010,502.45 = 407,510.40 : x
  2. Step 2: Convert to fraction form
    674,543.10/1,010,502.45 = 407,510.40/x
  3. Step 3: Cross multiply
    674,543.10x = 1,010,502.45 × 407,510.40
  4. Step 4: Simplify right side
    674,543.10x = 411,790,257,600.48
  5. Step 5: Solve for x
    x = 411,790,257,600.48/674,543.10
  6. Step 6: Final answer
    x = 610,472.86

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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.