Home / 752,274.29-1,038,119.77-421,125.59

Finding the Fourth Proportional to 752,274.29, 1,038,119.77 and 421,125.59

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Solution

The fourth proportional to 752,274.29, 1,038,119.77 and 421,125.59 is: 581,142.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,274.29 : 1,038,119.77 = 421,125.59 : x
  2. Step 2: Convert to fraction form
    752,274.29/1,038,119.77 = 421,125.59/x
  3. Step 3: Cross multiply
    752,274.29x = 1,038,119.77 × 421,125.59
  4. Step 4: Simplify right side
    752,274.29x = 437,178,803,753.62
  5. Step 5: Solve for x
    x = 437,178,803,753.62/752,274.29
  6. Step 6: Final answer
    x = 581,142.82

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1.5x scale

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.