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Finding the Fourth Proportional to 630,055.20, 945,082.80 and 565,101.30

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Solution

The fourth proportional to 630,055.20, 945,082.80 and 565,101.30 is: 847,651.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,055.20 : 945,082.80 = 565,101.30 : x
  2. Step 2: Convert to fraction form
    630,055.20/945,082.80 = 565,101.30/x
  3. Step 3: Cross multiply
    630,055.20x = 945,082.80 × 565,101.30
  4. Step 4: Simplify right side
    630,055.20x = 534,067,518,887.64
  5. Step 5: Solve for x
    x = 534,067,518,887.64/630,055.20
  6. Step 6: Final answer
    x = 847,651.95

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Double scale
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Similar ratio
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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.