Home / 869,512.10-1,307,767.35-778,532.90

Finding the Fourth Proportional to 869,512.10, 1,307,767.35 and 778,532.90

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Solution

The fourth proportional to 869,512.10, 1,307,767.35 and 778,532.90 is: 1,170,932.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,512.10 : 1,307,767.35 = 778,532.90 : x
  2. Step 2: Convert to fraction form
    869,512.10/1,307,767.35 = 778,532.90/x
  3. Step 3: Cross multiply
    869,512.10x = 1,307,767.35 × 778,532.90
  4. Step 4: Simplify right side
    869,512.10x = 1,018,139,907,520.82
  5. Step 5: Solve for x
    x = 1,018,139,907,520.82/869,512.10
  6. Step 6: Final answer
    x = 1,170,932.42

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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.