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Finding the Fourth Proportional to 524,279.40, 787,002.30 and 288,083.40

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Solution

The fourth proportional to 524,279.40, 787,002.30 and 288,083.40 is: 432,445.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,279.40 : 787,002.30 = 288,083.40 : x
  2. Step 2: Convert to fraction form
    524,279.40/787,002.30 = 288,083.40/x
  3. Step 3: Cross multiply
    524,279.40x = 787,002.30 × 288,083.40
  4. Step 4: Simplify right side
    524,279.40x = 226,722,298,391.82
  5. Step 5: Solve for x
    x = 226,722,298,391.82/524,279.40
  6. Step 6: Final answer
    x = 432,445.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.