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Finding the Fourth Proportional to 556,700.80, 834,436.80 and 307,561.60

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Solution

The fourth proportional to 556,700.80, 834,436.80 and 307,561.60 is: 461,002.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,700.80 : 834,436.80 = 307,561.60 : x
  2. Step 2: Convert to fraction form
    556,700.80/834,436.80 = 307,561.60/x
  3. Step 3: Cross multiply
    556,700.80x = 834,436.80 × 307,561.60
  4. Step 4: Simplify right side
    556,700.80x = 256,640,717,306.88
  5. Step 5: Solve for x
    x = 256,640,717,306.88/556,700.80
  6. Step 6: Final answer
    x = 461,002.96

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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.