Home / 823,324.40-1,234,985.16-424,079.30

Finding the Fourth Proportional to 823,324.40, 1,234,985.16 and 424,079.30

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Solution

The fourth proportional to 823,324.40, 1,234,985.16 and 424,079.30 is: 636,118.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,324.40 : 1,234,985.16 = 424,079.30 : x
  2. Step 2: Convert to fraction form
    823,324.40/1,234,985.16 = 424,079.30/x
  3. Step 3: Cross multiply
    823,324.40x = 1,234,985.16 × 424,079.30
  4. Step 4: Simplify right side
    823,324.40x = 523,731,642,163.19
  5. Step 5: Solve for x
    x = 523,731,642,163.19/823,324.40
  6. Step 6: Final answer
    x = 636,118.21

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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.