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Finding the Fourth Proportional to 477,471.65, 658,689.99 and 286,152.89

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Solution

The fourth proportional to 477,471.65, 658,689.99 and 286,152.89 is: 394,758.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,471.65 : 658,689.99 = 286,152.89 : x
  2. Step 2: Convert to fraction form
    477,471.65/658,689.99 = 286,152.89/x
  3. Step 3: Cross multiply
    477,471.65x = 658,689.99 × 286,152.89
  4. Step 4: Simplify right side
    477,471.65x = 188,486,044,252.57
  5. Step 5: Solve for x
    x = 188,486,044,252.57/477,471.65
  6. Step 6: Final answer
    x = 394,758.61

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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.