Home / 530,184.68-731,632.95-288,468.20

Finding the Fourth Proportional to 530,184.68, 731,632.95 and 288,468.20

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Solution

The fourth proportional to 530,184.68, 731,632.95 and 288,468.20 is: 398,074.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,184.68 : 731,632.95 = 288,468.20 : x
  2. Step 2: Convert to fraction form
    530,184.68/731,632.95 = 288,468.20/x
  3. Step 3: Cross multiply
    530,184.68x = 731,632.95 × 288,468.20
  4. Step 4: Simplify right side
    530,184.68x = 211,052,836,489.03
  5. Step 5: Solve for x
    x = 211,052,836,489.03/530,184.68
  6. Step 6: Final answer
    x = 398,074.19

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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.