Home / 731,901.77-1,010,130.50-421,744.01

Finding the Fourth Proportional to 731,901.77, 1,010,130.50 and 421,744.01

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Solution

The fourth proportional to 731,901.77, 1,010,130.50 and 421,744.01 is: 582,067.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,901.77 : 1,010,130.50 = 421,744.01 : x
  2. Step 2: Convert to fraction form
    731,901.77/1,010,130.50 = 421,744.01/x
  3. Step 3: Cross multiply
    731,901.77x = 1,010,130.50 × 421,744.01
  4. Step 4: Simplify right side
    731,901.77x = 426,016,484,165.69
  5. Step 5: Solve for x
    x = 426,016,484,165.69/731,901.77
  6. Step 6: Final answer
    x = 582,067.85

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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.