Home / 852,730.29-1,278,420.71-320,192.01

Finding the Fourth Proportional to 852,730.29, 1,278,420.71 and 320,192.01

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Solution

The fourth proportional to 852,730.29, 1,278,420.71 and 320,192.01 is: 480,034.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,730.29 : 1,278,420.71 = 320,192.01 : x
  2. Step 2: Convert to fraction form
    852,730.29/1,278,420.71 = 320,192.01/x
  3. Step 3: Cross multiply
    852,730.29x = 1,278,420.71 × 320,192.01
  4. Step 4: Simplify right side
    852,730.29x = 409,340,095,159.57
  5. Step 5: Solve for x
    x = 409,340,095,159.57/852,730.29
  6. Step 6: Final answer
    x = 480,034.66

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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.