Home / 778,986.20-1,168,997.70-442,026.20

Finding the Fourth Proportional to 778,986.20, 1,168,997.70 and 442,026.20

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Solution

The fourth proportional to 778,986.20, 1,168,997.70 and 442,026.20 is: 663,333.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,986.20 : 1,168,997.70 = 442,026.20 : x
  2. Step 2: Convert to fraction form
    778,986.20/1,168,997.70 = 442,026.20/x
  3. Step 3: Cross multiply
    778,986.20x = 1,168,997.70 × 442,026.20
  4. Step 4: Simplify right side
    778,986.20x = 516,727,611,139.74
  5. Step 5: Solve for x
    x = 516,727,611,139.74/778,986.20
  6. Step 6: Final answer
    x = 663,333.46

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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.