Home / 914,995.38-1,372,676.58-315,978.60

Finding the Fourth Proportional to 914,995.38, 1,372,676.58 and 315,978.60

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Solution

The fourth proportional to 914,995.38, 1,372,676.58 and 315,978.60 is: 474,031.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,995.38 : 1,372,676.58 = 315,978.60 : x
  2. Step 2: Convert to fraction form
    914,995.38/1,372,676.58 = 315,978.60/x
  3. Step 3: Cross multiply
    914,995.38x = 1,372,676.58 × 315,978.60
  4. Step 4: Simplify right side
    914,995.38x = 433,736,424,001.19
  5. Step 5: Solve for x
    x = 433,736,424,001.19/914,995.38
  6. Step 6: Final answer
    x = 474,031.27

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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.