Home / 753,396.23-1,039,959.74-498,829.43

Finding the Fourth Proportional to 753,396.23, 1,039,959.74 and 498,829.43

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Solution

The fourth proportional to 753,396.23, 1,039,959.74 and 498,829.43 is: 688,565.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,396.23 : 1,039,959.74 = 498,829.43 : x
  2. Step 2: Convert to fraction form
    753,396.23/1,039,959.74 = 498,829.43/x
  3. Step 3: Cross multiply
    753,396.23x = 1,039,959.74 × 498,829.43
  4. Step 4: Simplify right side
    753,396.23x = 518,762,524,327.15
  5. Step 5: Solve for x
    x = 518,762,524,327.15/753,396.23
  6. Step 6: Final answer
    x = 688,565.33

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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.