Home / 820,543.34-1,231,364.80-288,065.95

Finding the Fourth Proportional to 820,543.34, 1,231,364.80 and 288,065.95

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Solution

The fourth proportional to 820,543.34, 1,231,364.80 and 288,065.95 is: 432,291.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,543.34 : 1,231,364.80 = 288,065.95 : x
  2. Step 2: Convert to fraction form
    820,543.34/1,231,364.80 = 288,065.95/x
  3. Step 3: Cross multiply
    820,543.34x = 1,231,364.80 × 288,065.95
  4. Step 4: Simplify right side
    820,543.34x = 354,714,270,908.56
  5. Step 5: Solve for x
    x = 354,714,270,908.56/820,543.34
  6. Step 6: Final answer
    x = 432,291.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.