Home / 852,689.79-1,176,714.47-465,505.82

Finding the Fourth Proportional to 852,689.79, 1,176,714.47 and 465,505.82

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Solution

The fourth proportional to 852,689.79, 1,176,714.47 and 465,505.82 is: 642,399.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,689.79 : 1,176,714.47 = 465,505.82 : x
  2. Step 2: Convert to fraction form
    852,689.79/1,176,714.47 = 465,505.82/x
  3. Step 3: Cross multiply
    852,689.79x = 1,176,714.47 × 465,505.82
  4. Step 4: Simplify right side
    852,689.79x = 547,767,426,052.11
  5. Step 5: Solve for x
    x = 547,767,426,052.11/852,689.79
  6. Step 6: Final answer
    x = 642,399.42

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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.