Home / 802,343.28-1,107,242.40-439,759.32

Finding the Fourth Proportional to 802,343.28, 1,107,242.40 and 439,759.32

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Solution

The fourth proportional to 802,343.28, 1,107,242.40 and 439,759.32 is: 606,872.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,343.28 : 1,107,242.40 = 439,759.32 : x
  2. Step 2: Convert to fraction form
    802,343.28/1,107,242.40 = 439,759.32/x
  3. Step 3: Cross multiply
    802,343.28x = 1,107,242.40 × 439,759.32
  4. Step 4: Simplify right side
    802,343.28x = 486,920,164,899.17
  5. Step 5: Solve for x
    x = 486,920,164,899.17/802,343.28
  6. Step 6: Final answer
    x = 606,872.62

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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.