Home / 783,260.20-1,173,140.70-643,292.20

Finding the Fourth Proportional to 783,260.20, 1,173,140.70 and 643,292.20

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Solution

The fourth proportional to 783,260.20, 1,173,140.70 and 643,292.20 is: 963,501.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,260.20 : 1,173,140.70 = 643,292.20 : x
  2. Step 2: Convert to fraction form
    783,260.20/1,173,140.70 = 643,292.20/x
  3. Step 3: Cross multiply
    783,260.20x = 1,173,140.70 × 643,292.20
  4. Step 4: Simplify right side
    783,260.20x = 754,672,261,812.54
  5. Step 5: Solve for x
    x = 754,672,261,812.54/783,260.20
  6. Step 6: Final answer
    x = 963,501.35

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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.