Home / 745,374.17-1,028,539.05-418,723.85

Finding the Fourth Proportional to 745,374.17, 1,028,539.05 and 418,723.85

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Solution

The fourth proportional to 745,374.17, 1,028,539.05 and 418,723.85 is: 577,795.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,374.17 : 1,028,539.05 = 418,723.85 : x
  2. Step 2: Convert to fraction form
    745,374.17/1,028,539.05 = 418,723.85/x
  3. Step 3: Cross multiply
    745,374.17x = 1,028,539.05 × 418,723.85
  4. Step 4: Simplify right side
    745,374.17x = 430,673,825,748.65
  5. Step 5: Solve for x
    x = 430,673,825,748.65/745,374.17
  6. Step 6: Final answer
    x = 577,795.48

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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.