Home / 876,631.20-1,314,039.60-476,426.40

Finding the Fourth Proportional to 876,631.20, 1,314,039.60 and 476,426.40

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Solution

The fourth proportional to 876,631.20, 1,314,039.60 and 476,426.40 is: 714,146.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,631.20 : 1,314,039.60 = 476,426.40 : x
  2. Step 2: Convert to fraction form
    876,631.20/1,314,039.60 = 476,426.40/x
  3. Step 3: Cross multiply
    876,631.20x = 1,314,039.60 × 476,426.40
  4. Step 4: Simplify right side
    876,631.20x = 626,043,156,085.44
  5. Step 5: Solve for x
    x = 626,043,156,085.44/876,631.20
  6. Step 6: Final answer
    x = 714,146.56

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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.