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Finding the Fourth Proportional to 530,598.62, 732,221.69 and 288,880.71

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Solution

The fourth proportional to 530,598.62, 732,221.69 and 288,880.71 is: 398,652.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,598.62 : 732,221.69 = 288,880.71 : x
  2. Step 2: Convert to fraction form
    530,598.62/732,221.69 = 288,880.71/x
  3. Step 3: Cross multiply
    530,598.62x = 732,221.69 × 288,880.71
  4. Step 4: Simplify right side
    530,598.62x = 211,524,720,240.20
  5. Step 5: Solve for x
    x = 211,524,720,240.20/530,598.62
  6. Step 6: Final answer
    x = 398,652.98

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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.