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Finding the Fourth Proportional to 630,590.56, 870,233.48 and 344,129.12

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Solution

The fourth proportional to 630,590.56, 870,233.48 and 344,129.12 is: 474,908.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,590.56 : 870,233.48 = 344,129.12 : x
  2. Step 2: Convert to fraction form
    630,590.56/870,233.48 = 344,129.12/x
  3. Step 3: Cross multiply
    630,590.56x = 870,233.48 × 344,129.12
  4. Step 4: Simplify right side
    630,590.56x = 299,472,681,666.94
  5. Step 5: Solve for x
    x = 299,472,681,666.94/630,590.56
  6. Step 6: Final answer
    x = 474,908.29

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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.