Home / 987,219.69-1,480,829.55-239,265.69

Finding the Fourth Proportional to 987,219.69, 1,480,829.55 and 239,265.69

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Solution

The fourth proportional to 987,219.69, 1,480,829.55 and 239,265.69 is: 358,898.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,219.69 : 1,480,829.55 = 239,265.69 : x
  2. Step 2: Convert to fraction form
    987,219.69/1,480,829.55 = 239,265.69/x
  3. Step 3: Cross multiply
    987,219.69x = 1,480,829.55 × 239,265.69
  4. Step 4: Simplify right side
    987,219.69x = 354,311,702,856.81
  5. Step 5: Solve for x
    x = 354,311,702,856.81/987,219.69
  6. Step 6: Final answer
    x = 358,898.54

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Double scale
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Similar ratio
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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.