Home / 987,210.48-1,480,815.70-239,256.48

Finding the Fourth Proportional to 987,210.48, 1,480,815.70 and 239,256.48

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Solution

The fourth proportional to 987,210.48, 1,480,815.70 and 239,256.48 is: 358,884.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,210.48 : 1,480,815.70 = 239,256.48 : x
  2. Step 2: Convert to fraction form
    987,210.48/1,480,815.70 = 239,256.48/x
  3. Step 3: Cross multiply
    987,210.48x = 1,480,815.70 × 239,256.48
  4. Step 4: Simplify right side
    987,210.48x = 354,294,751,910.74
  5. Step 5: Solve for x
    x = 354,294,751,910.74/987,210.48
  6. Step 6: Final answer
    x = 358,884.72

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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.