Home / 876,076.74-1,208,983.59-488,888.10

Finding the Fourth Proportional to 876,076.74, 1,208,983.59 and 488,888.10

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Solution

The fourth proportional to 876,076.74, 1,208,983.59 and 488,888.10 is: 674,664.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,076.74 : 1,208,983.59 = 488,888.10 : x
  2. Step 2: Convert to fraction form
    876,076.74/1,208,983.59 = 488,888.10/x
  3. Step 3: Cross multiply
    876,076.74x = 1,208,983.59 × 488,888.10
  4. Step 4: Simplify right side
    876,076.74x = 591,057,690,246.28
  5. Step 5: Solve for x
    x = 591,057,690,246.28/876,076.74
  6. Step 6: Final answer
    x = 674,664.29

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Double scale
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1.5x scale

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.