Home / 1,243,363.20-1,866,427.20-770,582.40

Finding the Fourth Proportional to 1,243,363.20, 1,866,427.20 and 770,582.40

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Solution

The fourth proportional to 1,243,363.20, 1,866,427.20 and 770,582.40 is: 1,156,730.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,363.20 : 1,866,427.20 = 770,582.40 : x
  2. Step 2: Convert to fraction form
    1,243,363.20/1,866,427.20 = 770,582.40/x
  3. Step 3: Cross multiply
    1,243,363.20x = 1,866,427.20 × 770,582.40
  4. Step 4: Simplify right side
    1,243,363.20x = 1,438,235,951,201.28
  5. Step 5: Solve for x
    x = 1,438,235,951,201.28/1,243,363.20
  6. Step 6: Final answer
    x = 1,156,730.35

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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.