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Finding the Fourth Proportional to 442,852.30, 663,294.30 and 342,687.70

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Solution

The fourth proportional to 442,852.30, 663,294.30 and 342,687.70 is: 513,270.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,852.30 : 663,294.30 = 342,687.70 : x
  2. Step 2: Convert to fraction form
    442,852.30/663,294.30 = 342,687.70/x
  3. Step 3: Cross multiply
    442,852.30x = 663,294.30 × 342,687.70
  4. Step 4: Simplify right side
    442,852.30x = 227,302,798,090.11
  5. Step 5: Solve for x
    x = 227,302,798,090.11/442,852.30
  6. Step 6: Final answer
    x = 513,270.00

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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.