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Finding the Fourth Proportional to 614,248.72, 847,665.16 and 356,175.76

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Solution

The fourth proportional to 614,248.72, 847,665.16 and 356,175.76 is: 491,523.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,248.72 : 847,665.16 = 356,175.76 : x
  2. Step 2: Convert to fraction form
    614,248.72/847,665.16 = 356,175.76/x
  3. Step 3: Cross multiply
    614,248.72x = 847,665.16 × 356,175.76
  4. Step 4: Simplify right side
    614,248.72x = 301,917,782,588.52
  5. Step 5: Solve for x
    x = 301,917,782,588.52/614,248.72
  6. Step 6: Final answer
    x = 491,523.67

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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.