Home / 1,245,842.10-1,868,763.15-615,986.10

Finding the Fourth Proportional to 1,245,842.10, 1,868,763.15 and 615,986.10

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Solution

The fourth proportional to 1,245,842.10, 1,868,763.15 and 615,986.10 is: 923,979.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,842.10 : 1,868,763.15 = 615,986.10 : x
  2. Step 2: Convert to fraction form
    1,245,842.10/1,868,763.15 = 615,986.10/x
  3. Step 3: Cross multiply
    1,245,842.10x = 1,868,763.15 × 615,986.10
  4. Step 4: Simplify right side
    1,245,842.10x = 1,151,132,124,592.21
  5. Step 5: Solve for x
    x = 1,151,132,124,592.21/1,245,842.10
  6. Step 6: Final answer
    x = 923,979.15

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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.