Home / 864,010.20-1,295,400.90-331,325.40

Finding the Fourth Proportional to 864,010.20, 1,295,400.90 and 331,325.40

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Solution

The fourth proportional to 864,010.20, 1,295,400.90 and 331,325.40 is: 496,752.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,010.20 : 1,295,400.90 = 331,325.40 : x
  2. Step 2: Convert to fraction form
    864,010.20/1,295,400.90 = 331,325.40/x
  3. Step 3: Cross multiply
    864,010.20x = 1,295,400.90 × 331,325.40
  4. Step 4: Simplify right side
    864,010.20x = 429,199,221,352.86
  5. Step 5: Solve for x
    x = 429,199,221,352.86/864,010.20
  6. Step 6: Final answer
    x = 496,752.49

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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.