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Finding the Fourth Proportional to 614,656.65, 920,246.33 and 325,810.15

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Solution

The fourth proportional to 614,656.65, 920,246.33 and 325,810.15 is: 487,793.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,656.65 : 920,246.33 = 325,810.15 : x
  2. Step 2: Convert to fraction form
    614,656.65/920,246.33 = 325,810.15/x
  3. Step 3: Cross multiply
    614,656.65x = 920,246.33 × 325,810.15
  4. Step 4: Simplify right side
    614,656.65x = 299,825,593,328.16
  5. Step 5: Solve for x
    x = 299,825,593,328.16/614,656.65
  6. Step 6: Final answer
    x = 487,793.62

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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.