Home / 530,315.04-731,849.94-288,613.20

Finding the Fourth Proportional to 530,315.04, 731,849.94 and 288,613.20

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Solution

The fourth proportional to 530,315.04, 731,849.94 and 288,613.20 is: 398,294.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,315.04 : 731,849.94 = 288,613.20 : x
  2. Step 2: Convert to fraction form
    530,315.04/731,849.94 = 288,613.20/x
  3. Step 3: Cross multiply
    530,315.04x = 731,849.94 × 288,613.20
  4. Step 4: Simplify right side
    530,315.04x = 211,221,553,103.21
  5. Step 5: Solve for x
    x = 211,221,553,103.21/530,315.04
  6. Step 6: Final answer
    x = 398,294.48

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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.