Home / 745,679.53-1,028,710.36-503,873.88

Finding the Fourth Proportional to 745,679.53, 1,028,710.36 and 503,873.88

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Solution

The fourth proportional to 745,679.53, 1,028,710.36 and 503,873.88 is: 695,124.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,679.53 : 1,028,710.36 = 503,873.88 : x
  2. Step 2: Convert to fraction form
    745,679.53/1,028,710.36 = 503,873.88/x
  3. Step 3: Cross multiply
    745,679.53x = 1,028,710.36 × 503,873.88
  4. Step 4: Simplify right side
    745,679.53x = 518,340,280,489.40
  5. Step 5: Solve for x
    x = 518,340,280,489.40/745,679.53
  6. Step 6: Final answer
    x = 695,124.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.