Home / 676,865.10-1,015,297.65-487,908.30

Finding the Fourth Proportional to 676,865.10, 1,015,297.65 and 487,908.30

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Solution

The fourth proportional to 676,865.10, 1,015,297.65 and 487,908.30 is: 731,862.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,865.10 : 1,015,297.65 = 487,908.30 : x
  2. Step 2: Convert to fraction form
    676,865.10/1,015,297.65 = 487,908.30/x
  3. Step 3: Cross multiply
    676,865.10x = 1,015,297.65 × 487,908.30
  4. Step 4: Simplify right side
    676,865.10x = 495,372,150,405.50
  5. Step 5: Solve for x
    x = 495,372,150,405.50/676,865.10
  6. Step 6: Final answer
    x = 731,862.45

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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.