Home / 850,079.56-1,173,109.68-468,105.40

Finding the Fourth Proportional to 850,079.56, 1,173,109.68 and 468,105.40

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Solution

The fourth proportional to 850,079.56, 1,173,109.68 and 468,105.40 is: 645,985.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,079.56 : 1,173,109.68 = 468,105.40 : x
  2. Step 2: Convert to fraction form
    850,079.56/1,173,109.68 = 468,105.40/x
  3. Step 3: Cross multiply
    850,079.56x = 1,173,109.68 × 468,105.40
  4. Step 4: Simplify right side
    850,079.56x = 549,138,976,000.27
  5. Step 5: Solve for x
    x = 549,138,976,000.27/850,079.56
  6. Step 6: Final answer
    x = 645,985.39

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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.