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Finding the Fourth Proportional to 502,763.40, 754,145.10 and 353,172.60

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Solution

The fourth proportional to 502,763.40, 754,145.10 and 353,172.60 is: 529,758.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,763.40 : 754,145.10 = 353,172.60 : x
  2. Step 2: Convert to fraction form
    502,763.40/754,145.10 = 353,172.60/x
  3. Step 3: Cross multiply
    502,763.40x = 754,145.10 × 353,172.60
  4. Step 4: Simplify right side
    502,763.40x = 266,343,385,744.26
  5. Step 5: Solve for x
    x = 266,343,385,744.26/502,763.40
  6. Step 6: Final answer
    x = 529,758.90

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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.