Home / 987,228.20-1,480,842.36-239,274.20

Finding the Fourth Proportional to 987,228.20, 1,480,842.36 and 239,274.20

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Solution

The fourth proportional to 987,228.20, 1,480,842.36 and 239,274.20 is: 358,911.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,228.20 : 1,480,842.36 = 239,274.20 : x
  2. Step 2: Convert to fraction form
    987,228.20/1,480,842.36 = 239,274.20/x
  3. Step 3: Cross multiply
    987,228.20x = 1,480,842.36 × 239,274.20
  4. Step 4: Simplify right side
    987,228.20x = 354,327,371,015.11
  5. Step 5: Solve for x
    x = 354,327,371,015.11/987,228.20
  6. Step 6: Final answer
    x = 358,911.31

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Double scale
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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.