Home / 1,465,280.10-2,197,920.15-1,288,133.10

Finding the Fourth Proportional to 1,465,280.10, 2,197,920.15 and 1,288,133.10

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Solution

The fourth proportional to 1,465,280.10, 2,197,920.15 and 1,288,133.10 is: 1,932,199.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,465,280.10 : 2,197,920.15 = 1,288,133.10 : x
  2. Step 2: Convert to fraction form
    1,465,280.10/2,197,920.15 = 1,288,133.10/x
  3. Step 3: Cross multiply
    1,465,280.10x = 2,197,920.15 × 1,288,133.10
  4. Step 4: Simplify right side
    1,465,280.10x = 2,831,213,696,371.97
  5. Step 5: Solve for x
    x = 2,831,213,696,371.97/1,465,280.10
  6. Step 6: Final answer
    x = 1,932,199.65

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Double scale
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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.