Home / 1,154,419.20-1,731,628.80-480,276.45

Finding the Fourth Proportional to 1,154,419.20, 1,731,628.80 and 480,276.45

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Solution

The fourth proportional to 1,154,419.20, 1,731,628.80 and 480,276.45 is: 720,414.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154,419.20 : 1,731,628.80 = 480,276.45 : x
  2. Step 2: Convert to fraction form
    1,154,419.20/1,731,628.80 = 480,276.45/x
  3. Step 3: Cross multiply
    1,154,419.20x = 1,731,628.80 × 480,276.45
  4. Step 4: Simplify right side
    1,154,419.20x = 831,660,532,781.76
  5. Step 5: Solve for x
    x = 831,660,532,781.76/1,154,419.20
  6. Step 6: Final answer
    x = 720,414.68

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Double scale
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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.