Home / 1,306,309.70-1,959,464.55-745,400.90

Finding the Fourth Proportional to 1,306,309.70, 1,959,464.55 and 745,400.90

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Solution

The fourth proportional to 1,306,309.70, 1,959,464.55 and 745,400.90 is: 1,118,101.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,309.70 : 1,959,464.55 = 745,400.90 : x
  2. Step 2: Convert to fraction form
    1,306,309.70/1,959,464.55 = 745,400.90/x
  3. Step 3: Cross multiply
    1,306,309.70x = 1,959,464.55 × 745,400.90
  4. Step 4: Simplify right side
    1,306,309.70x = 1,460,586,639,088.10
  5. Step 5: Solve for x
    x = 1,460,586,639,088.10/1,306,309.70
  6. Step 6: Final answer
    x = 1,118,101.35

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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.