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Finding the Fourth Proportional to 572,534.60, 858,477.90 and 217,560.20

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Solution

The fourth proportional to 572,534.60, 858,477.90 and 217,560.20 is: 326,217.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,534.60 : 858,477.90 = 217,560.20 : x
  2. Step 2: Convert to fraction form
    572,534.60/858,477.90 = 217,560.20/x
  3. Step 3: Cross multiply
    572,534.60x = 858,477.90 × 217,560.20
  4. Step 4: Simplify right side
    572,534.60x = 186,770,623,619.58
  5. Step 5: Solve for x
    x = 186,770,623,619.58/572,534.60
  6. Step 6: Final answer
    x = 326,217.18

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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.