Home / 1,029,897.80-1,544,846.70-319,920.20

Finding the Fourth Proportional to 1,029,897.80, 1,544,846.70 and 319,920.20

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Solution

The fourth proportional to 1,029,897.80, 1,544,846.70 and 319,920.20 is: 479,880.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,897.80 : 1,544,846.70 = 319,920.20 : x
  2. Step 2: Convert to fraction form
    1,029,897.80/1,544,846.70 = 319,920.20/x
  3. Step 3: Cross multiply
    1,029,897.80x = 1,544,846.70 × 319,920.20
  4. Step 4: Simplify right side
    1,029,897.80x = 494,227,665,233.34
  5. Step 5: Solve for x
    x = 494,227,665,233.34/1,029,897.80
  6. Step 6: Final answer
    x = 479,880.30

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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.