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Finding the Fourth Proportional to 503,424.60, 755,720.10 and 303,970.20

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Solution

The fourth proportional to 503,424.60, 755,720.10 and 303,970.20 is: 456,307.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,424.60 : 755,720.10 = 303,970.20 : x
  2. Step 2: Convert to fraction form
    503,424.60/755,720.10 = 303,970.20/x
  3. Step 3: Cross multiply
    503,424.60x = 755,720.10 × 303,970.20
  4. Step 4: Simplify right side
    503,424.60x = 229,716,389,941.02
  5. Step 5: Solve for x
    x = 229,716,389,941.02/503,424.60
  6. Step 6: Final answer
    x = 456,307.44

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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.