Home / 823,655.20-1,234,100.40-402,023.20

Finding the Fourth Proportional to 823,655.20, 1,234,100.40 and 402,023.20

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Solution

The fourth proportional to 823,655.20, 1,234,100.40 and 402,023.20 is: 602,360.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,655.20 : 1,234,100.40 = 402,023.20 : x
  2. Step 2: Convert to fraction form
    823,655.20/1,234,100.40 = 402,023.20/x
  3. Step 3: Cross multiply
    823,655.20x = 1,234,100.40 × 402,023.20
  4. Step 4: Simplify right side
    823,655.20x = 496,136,991,929.28
  5. Step 5: Solve for x
    x = 496,136,991,929.28/823,655.20
  6. Step 6: Final answer
    x = 602,360.06

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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.