Home / 876,851.80-1,315,277.70-778,874.20

Finding the Fourth Proportional to 876,851.80, 1,315,277.70 and 778,874.20

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Solution

The fourth proportional to 876,851.80, 1,315,277.70 and 778,874.20 is: 1,168,311.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,851.80 : 1,315,277.70 = 778,874.20 : x
  2. Step 2: Convert to fraction form
    876,851.80/1,315,277.70 = 778,874.20/x
  3. Step 3: Cross multiply
    876,851.80x = 1,315,277.70 × 778,874.20
  4. Step 4: Simplify right side
    876,851.80x = 1,024,435,866,365.34
  5. Step 5: Solve for x
    x = 1,024,435,866,365.34/876,851.80
  6. Step 6: Final answer
    x = 1,168,311.30

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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.