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Finding the Fourth Proportional to 530,494.54, 732,082.56 and 288,778.93

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Solution

The fourth proportional to 530,494.54, 732,082.56 and 288,778.93 is: 398,514.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,494.54 : 732,082.56 = 288,778.93 : x
  2. Step 2: Convert to fraction form
    530,494.54/732,082.56 = 288,778.93/x
  3. Step 3: Cross multiply
    530,494.54x = 732,082.56 × 288,778.93
  4. Step 4: Simplify right side
    530,494.54x = 211,410,018,348.46
  5. Step 5: Solve for x
    x = 211,410,018,348.46/530,494.54
  6. Step 6: Final answer
    x = 398,514.98

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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.