Home / 748,843.80-1,123,362.90-369,958.20

Finding the Fourth Proportional to 748,843.80, 1,123,362.90 and 369,958.20

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Solution

The fourth proportional to 748,843.80, 1,123,362.90 and 369,958.20 is: 554,985.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,843.80 : 1,123,362.90 = 369,958.20 : x
  2. Step 2: Convert to fraction form
    748,843.80/1,123,362.90 = 369,958.20/x
  3. Step 3: Cross multiply
    748,843.80x = 1,123,362.90 × 369,958.20
  4. Step 4: Simplify right side
    748,843.80x = 415,597,316,430.78
  5. Step 5: Solve for x
    x = 415,597,316,430.78/748,843.80
  6. Step 6: Final answer
    x = 554,985.32

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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.