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Finding the Fourth Proportional to 623,602.80, 935,679.60 and 303,577.20

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Solution

The fourth proportional to 623,602.80, 935,679.60 and 303,577.20 is: 455,499.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,602.80 : 935,679.60 = 303,577.20 : x
  2. Step 2: Convert to fraction form
    623,602.80/935,679.60 = 303,577.20/x
  3. Step 3: Cross multiply
    623,602.80x = 935,679.60 × 303,577.20
  4. Step 4: Simplify right side
    623,602.80x = 284,050,993,065.12
  5. Step 5: Solve for x
    x = 284,050,993,065.12/623,602.80
  6. Step 6: Final answer
    x = 455,499.87

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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.