Home / 530,283.42-731,806.50-288,581.58

Finding the Fourth Proportional to 530,283.42, 731,806.50 and 288,581.58

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Solution

The fourth proportional to 530,283.42, 731,806.50 and 288,581.58 is: 398,250.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,283.42 : 731,806.50 = 288,581.58 : x
  2. Step 2: Convert to fraction form
    530,283.42/731,806.50 = 288,581.58/x
  3. Step 3: Cross multiply
    530,283.42x = 731,806.50 × 288,581.58
  4. Step 4: Simplify right side
    530,283.42x = 211,185,876,024.27
  5. Step 5: Solve for x
    x = 211,185,876,024.27/530,283.42
  6. Step 6: Final answer
    x = 398,250.95

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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.