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Finding the Fourth Proportional to 625,065.48, 862,654.23 and 450,779.67

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Solution

The fourth proportional to 625,065.48, 862,654.23 and 450,779.67 is: 622,122.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,065.48 : 862,654.23 = 450,779.67 : x
  2. Step 2: Convert to fraction form
    625,065.48/862,654.23 = 450,779.67/x
  3. Step 3: Cross multiply
    625,065.48x = 862,654.23 × 450,779.67
  4. Step 4: Simplify right side
    625,065.48x = 388,866,989,123.50
  5. Step 5: Solve for x
    x = 388,866,989,123.50/625,065.48
  6. Step 6: Final answer
    x = 622,122.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.