Home / 530,270.65-731,788.88-288,568.80

Finding the Fourth Proportional to 530,270.65, 731,788.88 and 288,568.80

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Solution

The fourth proportional to 530,270.65, 731,788.88 and 288,568.80 is: 398,233.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,270.65 : 731,788.88 = 288,568.80 : x
  2. Step 2: Convert to fraction form
    530,270.65/731,788.88 = 288,568.80/x
  3. Step 3: Cross multiply
    530,270.65x = 731,788.88 × 288,568.80
  4. Step 4: Simplify right side
    530,270.65x = 211,171,441,193.46
  5. Step 5: Solve for x
    x = 211,171,441,193.46/530,270.65
  6. Step 6: Final answer
    x = 398,233.32

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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.