Home / 811,001.84-1,119,134.40-448,397.24

Finding the Fourth Proportional to 811,001.84, 1,119,134.40 and 448,397.24

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Solution

The fourth proportional to 811,001.84, 1,119,134.40 and 448,397.24 is: 618,761.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,001.84 : 1,119,134.40 = 448,397.24 : x
  2. Step 2: Convert to fraction form
    811,001.84/1,119,134.40 = 448,397.24/x
  3. Step 3: Cross multiply
    811,001.84x = 1,119,134.40 × 448,397.24
  4. Step 4: Simplify right side
    811,001.84x = 501,816,776,149.06
  5. Step 5: Solve for x
    x = 501,816,776,149.06/811,001.84
  6. Step 6: Final answer
    x = 618,761.58

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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.