Home / 838,399.50-1,157,282.91-498,860.46

Finding the Fourth Proportional to 838,399.50, 1,157,282.91 and 498,860.46

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Solution

The fourth proportional to 838,399.50, 1,157,282.91 and 498,860.46 is: 688,600.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,399.50 : 1,157,282.91 = 498,860.46 : x
  2. Step 2: Convert to fraction form
    838,399.50/1,157,282.91 = 498,860.46/x
  3. Step 3: Cross multiply
    838,399.50x = 1,157,282.91 × 498,860.46
  4. Step 4: Simplify right side
    838,399.50x = 577,322,684,832.74
  5. Step 5: Solve for x
    x = 577,322,684,832.74/838,399.50
  6. Step 6: Final answer
    x = 688,600.94

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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.