Home / 851,117.92-1,174,595.28-469,143.84

Finding the Fourth Proportional to 851,117.92, 1,174,595.28 and 469,143.84

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Solution

The fourth proportional to 851,117.92, 1,174,595.28 and 469,143.84 is: 647,447.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,117.92 : 1,174,595.28 = 469,143.84 : x
  2. Step 2: Convert to fraction form
    851,117.92/1,174,595.28 = 469,143.84/x
  3. Step 3: Cross multiply
    851,117.92x = 1,174,595.28 × 469,143.84
  4. Step 4: Simplify right side
    851,117.92x = 551,054,140,105.08
  5. Step 5: Solve for x
    x = 551,054,140,105.08/851,117.92
  6. Step 6: Final answer
    x = 647,447.47

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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.