Home / 996,139.80-1,492,839.15-426,839.40

Finding the Fourth Proportional to 996,139.80, 1,492,839.15 and 426,839.40

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Solution

The fourth proportional to 996,139.80, 1,492,839.15 and 426,839.40 is: 639,671.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,139.80 : 1,492,839.15 = 426,839.40 : x
  2. Step 2: Convert to fraction form
    996,139.80/1,492,839.15 = 426,839.40/x
  3. Step 3: Cross multiply
    996,139.80x = 1,492,839.15 × 426,839.40
  4. Step 4: Simplify right side
    996,139.80x = 637,202,567,082.51
  5. Step 5: Solve for x
    x = 637,202,567,082.51/996,139.80
  6. Step 6: Final answer
    x = 639,671.83

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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.