Home / 854,055.60-1,281,481.92-380,691.60

Finding the Fourth Proportional to 854,055.60, 1,281,481.92 and 380,691.60

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Solution

The fourth proportional to 854,055.60, 1,281,481.92 and 380,691.60 is: 571,215.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,055.60 : 1,281,481.92 = 380,691.60 : x
  2. Step 2: Convert to fraction form
    854,055.60/1,281,481.92 = 380,691.60/x
  3. Step 3: Cross multiply
    854,055.60x = 1,281,481.92 × 380,691.60
  4. Step 4: Simplify right side
    854,055.60x = 487,849,402,495.87
  5. Step 5: Solve for x
    x = 487,849,402,495.87/854,055.60
  6. Step 6: Final answer
    x = 571,215.04

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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.