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Finding the Fourth Proportional to 530,598.12, 732,220.99 and 288,880.21

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Solution

The fourth proportional to 530,598.12, 732,220.99 and 288,880.21 is: 398,652.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,598.12 : 732,220.99 = 288,880.21 : x
  2. Step 2: Convert to fraction form
    530,598.12/732,220.99 = 288,880.21/x
  3. Step 3: Cross multiply
    530,598.12x = 732,220.99 × 288,880.21
  4. Step 4: Simplify right side
    530,598.12x = 211,524,153,357.61
  5. Step 5: Solve for x
    x = 211,524,153,357.61/530,598.12
  6. Step 6: Final answer
    x = 398,652.29

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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.