Home / 723,254.40-1,084,881.60-349,315.20

Finding the Fourth Proportional to 723,254.40, 1,084,881.60 and 349,315.20

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Solution

The fourth proportional to 723,254.40, 1,084,881.60 and 349,315.20 is: 523,972.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,254.40 : 1,084,881.60 = 349,315.20 : x
  2. Step 2: Convert to fraction form
    723,254.40/1,084,881.60 = 349,315.20/x
  3. Step 3: Cross multiply
    723,254.40x = 1,084,881.60 × 349,315.20
  4. Step 4: Simplify right side
    723,254.40x = 378,965,633,080.32
  5. Step 5: Solve for x
    x = 378,965,633,080.32/723,254.40
  6. Step 6: Final answer
    x = 523,972.80

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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.