Home / 811,100.38-1,119,325.80-448,548.64

Finding the Fourth Proportional to 811,100.38, 1,119,325.80 and 448,548.64

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Solution

The fourth proportional to 811,100.38, 1,119,325.80 and 448,548.64 is: 619,001.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,100.38 : 1,119,325.80 = 448,548.64 : x
  2. Step 2: Convert to fraction form
    811,100.38/1,119,325.80 = 448,548.64/x
  3. Step 3: Cross multiply
    811,100.38x = 1,119,325.80 × 448,548.64
  4. Step 4: Simplify right side
    811,100.38x = 502,072,065,306.91
  5. Step 5: Solve for x
    x = 502,072,065,306.91/811,100.38
  6. Step 6: Final answer
    x = 619,001.15

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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.