Home / 530,781.03-732,494.88-289,073.79

Finding the Fourth Proportional to 530,781.03, 732,494.88 and 289,073.79

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Solution

The fourth proportional to 530,781.03, 732,494.88 and 289,073.79 is: 398,931.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,781.03 : 732,494.88 = 289,073.79 : x
  2. Step 2: Convert to fraction form
    530,781.03/732,494.88 = 289,073.79/x
  3. Step 3: Cross multiply
    530,781.03x = 732,494.88 × 289,073.79
  4. Step 4: Simplify right side
    530,781.03x = 211,745,071,117.20
  5. Step 5: Solve for x
    x = 211,745,071,117.20/530,781.03
  6. Step 6: Final answer
    x = 398,931.12

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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.