Home / 530,155.98-731,607.18-288,433.02

Finding the Fourth Proportional to 530,155.98, 731,607.18 and 288,433.02

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Solution

The fourth proportional to 530,155.98, 731,607.18 and 288,433.02 is: 398,033.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,155.98 : 731,607.18 = 288,433.02 : x
  2. Step 2: Convert to fraction form
    530,155.98/731,607.18 = 288,433.02/x
  3. Step 3: Cross multiply
    530,155.98x = 731,607.18 × 288,433.02
  4. Step 4: Simplify right side
    530,155.98x = 211,019,668,381.08
  5. Step 5: Solve for x
    x = 211,019,668,381.08/530,155.98
  6. Step 6: Final answer
    x = 398,033.18

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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.