Home / 858,894.20-1,288,341.30-540,029.60

Finding the Fourth Proportional to 858,894.20, 1,288,341.30 and 540,029.60

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Solution

The fourth proportional to 858,894.20, 1,288,341.30 and 540,029.60 is: 810,044.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,894.20 : 1,288,341.30 = 540,029.60 : x
  2. Step 2: Convert to fraction form
    858,894.20/1,288,341.30 = 540,029.60/x
  3. Step 3: Cross multiply
    858,894.20x = 1,288,341.30 × 540,029.60
  4. Step 4: Simplify right side
    858,894.20x = 695,742,436,902.48
  5. Step 5: Solve for x
    x = 695,742,436,902.48/858,894.20
  6. Step 6: Final answer
    x = 810,044.40

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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.