Home / 811,099.45-1,119,324.49-448,547.70

Finding the Fourth Proportional to 811,099.45, 1,119,324.49 and 448,547.70

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Solution

The fourth proportional to 811,099.45, 1,119,324.49 and 448,547.70 is: 618,999.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,099.45 : 1,119,324.49 = 448,547.70 : x
  2. Step 2: Convert to fraction form
    811,099.45/1,119,324.49 = 448,547.70/x
  3. Step 3: Cross multiply
    811,099.45x = 1,119,324.49 × 448,547.70
  4. Step 4: Simplify right side
    811,099.45x = 502,070,425,543.17
  5. Step 5: Solve for x
    x = 502,070,425,543.17/811,099.45
  6. Step 6: Final answer
    x = 618,999.83

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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.