Home / 1,214,009.30-1,822,115.55-615,386.90

Finding the Fourth Proportional to 1,214,009.30, 1,822,115.55 and 615,386.90

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Solution

The fourth proportional to 1,214,009.30, 1,822,115.55 and 615,386.90 is: 923,638.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,009.30 : 1,822,115.55 = 615,386.90 : x
  2. Step 2: Convert to fraction form
    1,214,009.30/1,822,115.55 = 615,386.90/x
  3. Step 3: Cross multiply
    1,214,009.30x = 1,822,115.55 × 615,386.90
  4. Step 4: Simplify right side
    1,214,009.30x = 1,121,306,039,756.30
  5. Step 5: Solve for x
    x = 1,121,306,039,756.30/1,214,009.30
  6. Step 6: Final answer
    x = 923,638.76

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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.