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Finding the Fourth Proportional to 482,635.72, 666,055.12 and 291,612.24

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Solution

The fourth proportional to 482,635.72, 666,055.12 and 291,612.24 is: 402,435.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,635.72 : 666,055.12 = 291,612.24 : x
  2. Step 2: Convert to fraction form
    482,635.72/666,055.12 = 291,612.24/x
  3. Step 3: Cross multiply
    482,635.72x = 666,055.12 × 291,612.24
  4. Step 4: Simplify right side
    482,635.72x = 194,229,825,506.67
  5. Step 5: Solve for x
    x = 194,229,825,506.67/482,635.72
  6. Step 6: Final answer
    x = 402,435.66

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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.