Home / 745,171.20-1,118,498.40-345,902.40

Finding the Fourth Proportional to 745,171.20, 1,118,498.40 and 345,902.40

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Solution

The fourth proportional to 745,171.20, 1,118,498.40 and 345,902.40 is: 519,197.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,171.20 : 1,118,498.40 = 345,902.40 : x
  2. Step 2: Convert to fraction form
    745,171.20/1,118,498.40 = 345,902.40/x
  3. Step 3: Cross multiply
    745,171.20x = 1,118,498.40 × 345,902.40
  4. Step 4: Simplify right side
    745,171.20x = 386,891,280,956.16
  5. Step 5: Solve for x
    x = 386,891,280,956.16/745,171.20
  6. Step 6: Final answer
    x = 519,197.84

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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.