Home / 702,959.10-1,051,981.05-643,976.70

Finding the Fourth Proportional to 702,959.10, 1,051,981.05 and 643,976.70

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Solution

The fourth proportional to 702,959.10, 1,051,981.05 and 643,976.70 is: 963,713.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,959.10 : 1,051,981.05 = 643,976.70 : x
  2. Step 2: Convert to fraction form
    702,959.10/1,051,981.05 = 643,976.70/x
  3. Step 3: Cross multiply
    702,959.10x = 1,051,981.05 × 643,976.70
  4. Step 4: Simplify right side
    702,959.10x = 677,451,285,041.54
  5. Step 5: Solve for x
    x = 677,451,285,041.54/702,959.10
  6. Step 6: Final answer
    x = 963,713.66

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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.