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Finding the Fourth Proportional to 530,544.60, 732,127.68 and 288,820.98

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Solution

The fourth proportional to 530,544.60, 732,127.68 and 288,820.98 is: 398,559.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,544.60 : 732,127.68 = 288,820.98 : x
  2. Step 2: Convert to fraction form
    530,544.60/732,127.68 = 288,820.98/x
  3. Step 3: Cross multiply
    530,544.60x = 732,127.68 × 288,820.98
  4. Step 4: Simplify right side
    530,544.60x = 211,453,834,022.73
  5. Step 5: Solve for x
    x = 211,453,834,022.73/530,544.60
  6. Step 6: Final answer
    x = 398,559.96

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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.