Home / 891,863.22-1,337,999.28-386,509.05

Finding the Fourth Proportional to 891,863.22, 1,337,999.28 and 386,509.05

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Solution

The fourth proportional to 891,863.22, 1,337,999.28 and 386,509.05 is: 579,852.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,863.22 : 1,337,999.28 = 386,509.05 : x
  2. Step 2: Convert to fraction form
    891,863.22/1,337,999.28 = 386,509.05/x
  3. Step 3: Cross multiply
    891,863.22x = 1,337,999.28 × 386,509.05
  4. Step 4: Simplify right side
    891,863.22x = 517,148,829,164.08
  5. Step 5: Solve for x
    x = 517,148,829,164.08/891,863.22
  6. Step 6: Final answer
    x = 579,852.17

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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.