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Finding the Fourth Proportional to 530,649.70, 732,301.60 and 304,251.46

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Solution

The fourth proportional to 530,649.70, 732,301.60 and 304,251.46 is: 419,869.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,649.70 : 732,301.60 = 304,251.46 : x
  2. Step 2: Convert to fraction form
    530,649.70/732,301.60 = 304,251.46/x
  3. Step 3: Cross multiply
    530,649.70x = 732,301.60 × 304,251.46
  4. Step 4: Simplify right side
    530,649.70x = 222,803,830,960.34
  5. Step 5: Solve for x
    x = 222,803,830,960.34/530,649.70
  6. Step 6: Final answer
    x = 419,869.89

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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.