Home / 940,680.88-1,298,149.20-510,969.40

Finding the Fourth Proportional to 940,680.88, 1,298,149.20 and 510,969.40

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Solution

The fourth proportional to 940,680.88, 1,298,149.20 and 510,969.40 is: 705,142.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,680.88 : 1,298,149.20 = 510,969.40 : x
  2. Step 2: Convert to fraction form
    940,680.88/1,298,149.20 = 510,969.40/x
  3. Step 3: Cross multiply
    940,680.88x = 1,298,149.20 × 510,969.40
  4. Step 4: Simplify right side
    940,680.88x = 663,314,517,834.48
  5. Step 5: Solve for x
    x = 663,314,517,834.48/940,680.88
  6. Step 6: Final answer
    x = 705,142.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.