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Finding the Fourth Proportional to 387,002.80, 580,504.20 and 292,524.40

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Solution

The fourth proportional to 387,002.80, 580,504.20 and 292,524.40 is: 438,786.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,002.80 : 580,504.20 = 292,524.40 : x
  2. Step 2: Convert to fraction form
    387,002.80/580,504.20 = 292,524.40/x
  3. Step 3: Cross multiply
    387,002.80x = 580,504.20 × 292,524.40
  4. Step 4: Simplify right side
    387,002.80x = 169,811,642,802.48
  5. Step 5: Solve for x
    x = 169,811,642,802.48/387,002.80
  6. Step 6: Final answer
    x = 438,786.60

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1.5x scale

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.