Home / 745,401.60-1,118,102.40-272,102.40

Finding the Fourth Proportional to 745,401.60, 1,118,102.40 and 272,102.40

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Solution

The fourth proportional to 745,401.60, 1,118,102.40 and 272,102.40 is: 408,153.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,401.60 : 1,118,102.40 = 272,102.40 : x
  2. Step 2: Convert to fraction form
    745,401.60/1,118,102.40 = 272,102.40/x
  3. Step 3: Cross multiply
    745,401.60x = 1,118,102.40 × 272,102.40
  4. Step 4: Simplify right side
    745,401.60x = 304,238,346,485.76
  5. Step 5: Solve for x
    x = 304,238,346,485.76/745,401.60
  6. Step 6: Final answer
    x = 408,153.60

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Similar ratio
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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.