Home / 1,539,375.30-2,309,062.95-742,213.80

Finding the Fourth Proportional to 1,539,375.30, 2,309,062.95 and 742,213.80

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Solution

The fourth proportional to 1,539,375.30, 2,309,062.95 and 742,213.80 is: 1,113,320.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539,375.30 : 2,309,062.95 = 742,213.80 : x
  2. Step 2: Convert to fraction form
    1,539,375.30/2,309,062.95 = 742,213.80/x
  3. Step 3: Cross multiply
    1,539,375.30x = 2,309,062.95 × 742,213.80
  4. Step 4: Simplify right side
    1,539,375.30x = 1,713,818,386,558.71
  5. Step 5: Solve for x
    x = 1,713,818,386,558.71/1,539,375.30
  6. Step 6: Final answer
    x = 1,113,320.70

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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.