Home / 987,228.40-1,480,842.68-239,274.40

Finding the Fourth Proportional to 987,228.40, 1,480,842.68 and 239,274.40

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Solution

The fourth proportional to 987,228.40, 1,480,842.68 and 239,274.40 is: 358,911.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,228.40 : 1,480,842.68 = 239,274.40 : x
  2. Step 2: Convert to fraction form
    987,228.40/1,480,842.68 = 239,274.40/x
  3. Step 3: Cross multiply
    987,228.40x = 1,480,842.68 × 239,274.40
  4. Step 4: Simplify right side
    987,228.40x = 354,327,743,751.39
  5. Step 5: Solve for x
    x = 354,327,743,751.39/987,228.40
  6. Step 6: Final answer
    x = 358,911.62

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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.