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Finding the Fourth Proportional to 486,452.55, 671,253.59 and 282,463.70

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Solution

The fourth proportional to 486,452.55, 671,253.59 and 282,463.70 is: 389,770.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,452.55 : 671,253.59 = 282,463.70 : x
  2. Step 2: Convert to fraction form
    486,452.55/671,253.59 = 282,463.70/x
  3. Step 3: Cross multiply
    486,452.55x = 671,253.59 × 282,463.70
  4. Step 4: Simplify right side
    486,452.55x = 189,604,772,669.68
  5. Step 5: Solve for x
    x = 189,604,772,669.68/486,452.55
  6. Step 6: Final answer
    x = 389,770.33

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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.