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Finding the Fourth Proportional to 630,600.66, 870,247.26 and 344,139.17

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Solution

The fourth proportional to 630,600.66, 870,247.26 and 344,139.17 is: 474,922.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,600.66 : 870,247.26 = 344,139.17 : x
  2. Step 2: Convert to fraction form
    630,600.66/870,247.26 = 344,139.17/x
  3. Step 3: Cross multiply
    630,600.66x = 870,247.26 × 344,139.17
  4. Step 4: Simplify right side
    630,600.66x = 299,486,165,399.94
  5. Step 5: Solve for x
    x = 299,486,165,399.94/630,600.66
  6. Step 6: Final answer
    x = 474,922.06

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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.