Home / 824,342.18-1,137,655.31-518,680.58

Finding the Fourth Proportional to 824,342.18, 1,137,655.31 and 518,680.58

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Solution

The fourth proportional to 824,342.18, 1,137,655.31 and 518,680.58 is: 715,818.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,342.18 : 1,137,655.31 = 518,680.58 : x
  2. Step 2: Convert to fraction form
    824,342.18/1,137,655.31 = 518,680.58/x
  3. Step 3: Cross multiply
    824,342.18x = 1,137,655.31 × 518,680.58
  4. Step 4: Simplify right side
    824,342.18x = 590,079,707,749.20
  5. Step 5: Solve for x
    x = 590,079,707,749.20/824,342.18
  6. Step 6: Final answer
    x = 715,818.90

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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.