Home / 783,140.40-1,172,086.20-783,140.40

Finding the Fourth Proportional to 783,140.40, 1,172,086.20 and 783,140.40

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Solution

The fourth proportional to 783,140.40, 1,172,086.20 and 783,140.40 is: 1,172,086.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,140.40 : 1,172,086.20 = 783,140.40 : x
  2. Step 2: Convert to fraction form
    783,140.40/1,172,086.20 = 783,140.40/x
  3. Step 3: Cross multiply
    783,140.40x = 1,172,086.20 × 783,140.40
  4. Step 4: Simplify right side
    783,140.40x = 917,908,055,502.48
  5. Step 5: Solve for x
    x = 917,908,055,502.48/783,140.40
  6. Step 6: Final answer
    x = 1,172,086.20

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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.