Home / 852,728.50-1,176,746.70-465,530.68

Finding the Fourth Proportional to 852,728.50, 1,176,746.70 and 465,530.68

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Solution

The fourth proportional to 852,728.50, 1,176,746.70 and 465,530.68 is: 642,422.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,728.50 : 1,176,746.70 = 465,530.68 : x
  2. Step 2: Convert to fraction form
    852,728.50/1,176,746.70 = 465,530.68/x
  3. Step 3: Cross multiply
    852,728.50x = 1,176,746.70 × 465,530.68
  4. Step 4: Simplify right side
    852,728.50x = 547,811,691,438.76
  5. Step 5: Solve for x
    x = 547,811,691,438.76/852,728.50
  6. Step 6: Final answer
    x = 642,422.17

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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.