Home / 990,881.28-1,367,982.72-652,333.68

Finding the Fourth Proportional to 990,881.28, 1,367,982.72 and 652,333.68

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Solution

The fourth proportional to 990,881.28, 1,367,982.72 and 652,333.68 is: 900,593.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,881.28 : 1,367,982.72 = 652,333.68 : x
  2. Step 2: Convert to fraction form
    990,881.28/1,367,982.72 = 652,333.68/x
  3. Step 3: Cross multiply
    990,881.28x = 1,367,982.72 × 652,333.68
  4. Step 4: Simplify right side
    990,881.28x = 892,381,201,914.01
  5. Step 5: Solve for x
    x = 892,381,201,914.01/990,881.28
  6. Step 6: Final answer
    x = 900,593.46

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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.