Home / 879,077.80-1,318,616.70-869,746.60

Finding the Fourth Proportional to 879,077.80, 1,318,616.70 and 869,746.60

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Solution

The fourth proportional to 879,077.80, 1,318,616.70 and 869,746.60 is: 1,304,619.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,077.80 : 1,318,616.70 = 869,746.60 : x
  2. Step 2: Convert to fraction form
    879,077.80/1,318,616.70 = 869,746.60/x
  3. Step 3: Cross multiply
    879,077.80x = 1,318,616.70 × 869,746.60
  4. Step 4: Simplify right side
    879,077.80x = 1,146,862,391,528.22
  5. Step 5: Solve for x
    x = 1,146,862,391,528.22/879,077.80
  6. Step 6: Final answer
    x = 1,304,619.90

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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.