Home / 805,309.62-1,111,298.96-442,730.86

Finding the Fourth Proportional to 805,309.62, 1,111,298.96 and 442,730.86

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Solution

The fourth proportional to 805,309.62, 1,111,298.96 and 442,730.86 is: 610,953.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,309.62 : 1,111,298.96 = 442,730.86 : x
  2. Step 2: Convert to fraction form
    805,309.62/1,111,298.96 = 442,730.86/x
  3. Step 3: Cross multiply
    805,309.62x = 1,111,298.96 × 442,730.86
  4. Step 4: Simplify right side
    805,309.62x = 492,006,344,277.91
  5. Step 5: Solve for x
    x = 492,006,344,277.91/805,309.62
  6. Step 6: Final answer
    x = 610,953.02

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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.