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Finding the Fourth Proportional to 621,002.90, 931,504.35 and 532,429.40

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Solution

The fourth proportional to 621,002.90, 931,504.35 and 532,429.40 is: 798,644.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,002.90 : 931,504.35 = 532,429.40 : x
  2. Step 2: Convert to fraction form
    621,002.90/931,504.35 = 532,429.40/x
  3. Step 3: Cross multiply
    621,002.90x = 931,504.35 × 532,429.40
  4. Step 4: Simplify right side
    621,002.90x = 495,960,302,167.89
  5. Step 5: Solve for x
    x = 495,960,302,167.89/621,002.90
  6. Step 6: Final answer
    x = 798,644.10

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Similar ratio
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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.