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Finding the Fourth Proportional to 674,321.46, 930,526.29 and 387,846.33

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Solution

The fourth proportional to 674,321.46, 930,526.29 and 387,846.33 is: 535,206.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,321.46 : 930,526.29 = 387,846.33 : x
  2. Step 2: Convert to fraction form
    674,321.46/930,526.29 = 387,846.33/x
  3. Step 3: Cross multiply
    674,321.46x = 930,526.29 × 387,846.33
  4. Step 4: Simplify right side
    674,321.46x = 360,901,206,545.02
  5. Step 5: Solve for x
    x = 360,901,206,545.02/674,321.46
  6. Step 6: Final answer
    x = 535,206.47

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1.5x scale

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.