Home / 851,118.70-1,174,543.80-469,153.72

Finding the Fourth Proportional to 851,118.70, 1,174,543.80 and 469,153.72

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Solution

The fourth proportional to 851,118.70, 1,174,543.80 and 469,153.72 is: 647,432.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,118.70 : 1,174,543.80 = 469,153.72 : x
  2. Step 2: Convert to fraction form
    851,118.70/1,174,543.80 = 469,153.72/x
  3. Step 3: Cross multiply
    851,118.70x = 1,174,543.80 × 469,153.72
  4. Step 4: Simplify right side
    851,118.70x = 551,041,593,072.94
  5. Step 5: Solve for x
    x = 551,041,593,072.94/851,118.70
  6. Step 6: Final answer
    x = 647,432.13

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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.