Home / 912,358.48-1,368,070.44-486,137.20

Finding the Fourth Proportional to 912,358.48, 1,368,070.44 and 486,137.20

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Solution

The fourth proportional to 912,358.48, 1,368,070.44 and 486,137.20 is: 728,956.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,358.48 : 1,368,070.44 = 486,137.20 : x
  2. Step 2: Convert to fraction form
    912,358.48/1,368,070.44 = 486,137.20/x
  3. Step 3: Cross multiply
    912,358.48x = 1,368,070.44 × 486,137.20
  4. Step 4: Simplify right side
    912,358.48x = 665,069,933,104.37
  5. Step 5: Solve for x
    x = 665,069,933,104.37/912,358.48
  6. Step 6: Final answer
    x = 728,956.82

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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.