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Finding the Fourth Proportional to 630,546.20, 870,174.76 and 344,082.02

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Solution

The fourth proportional to 630,546.20, 870,174.76 and 344,082.02 is: 474,844.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,546.20 : 870,174.76 = 344,082.02 : x
  2. Step 2: Convert to fraction form
    630,546.20/870,174.76 = 344,082.02/x
  3. Step 3: Cross multiply
    630,546.20x = 870,174.76 × 344,082.02
  4. Step 4: Simplify right side
    630,546.20x = 299,411,489,173.82
  5. Step 5: Solve for x
    x = 299,411,489,173.82/630,546.20
  6. Step 6: Final answer
    x = 474,844.65

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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.