Home / 458,244.87-687,401.02-121,283.24

Finding the Fourth Proportional to 458,244.87, 687,401.02 and 121,283.24

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Solution

The fourth proportional to 458,244.87, 687,401.02 and 121,283.24 is: 181,933.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,244.87 : 687,401.02 = 121,283.24 : x
  2. Step 2: Convert to fraction form
    458,244.87/687,401.02 = 121,283.24/x
  3. Step 3: Cross multiply
    458,244.87x = 687,401.02 × 121,283.24
  4. Step 4: Simplify right side
    458,244.87x = 83,370,219,599.50
  5. Step 5: Solve for x
    x = 83,370,219,599.50/458,244.87
  6. Step 6: Final answer
    x = 181,933.78

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1.5x scale

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.