Home / 986,149.28-1,360,892.40-578,159.84

Finding the Fourth Proportional to 986,149.28, 1,360,892.40 and 578,159.84

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Solution

The fourth proportional to 986,149.28, 1,360,892.40 and 578,159.84 is: 797,864.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,149.28 : 1,360,892.40 = 578,159.84 : x
  2. Step 2: Convert to fraction form
    986,149.28/1,360,892.40 = 578,159.84/x
  3. Step 3: Cross multiply
    986,149.28x = 1,360,892.40 × 578,159.84
  4. Step 4: Simplify right side
    986,149.28x = 786,813,332,241.22
  5. Step 5: Solve for x
    x = 786,813,332,241.22/986,149.28
  6. Step 6: Final answer
    x = 797,864.33

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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.