Home / 820,088.52-1,229,135.47-580,271.53

Finding the Fourth Proportional to 820,088.52, 1,229,135.47 and 580,271.53

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Solution

The fourth proportional to 820,088.52, 1,229,135.47 and 580,271.53 is: 869,701.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,088.52 : 1,229,135.47 = 580,271.53 : x
  2. Step 2: Convert to fraction form
    820,088.52/1,229,135.47 = 580,271.53/x
  3. Step 3: Cross multiply
    820,088.52x = 1,229,135.47 × 580,271.53
  4. Step 4: Simplify right side
    820,088.52x = 713,232,320,799.31
  5. Step 5: Solve for x
    x = 713,232,320,799.31/820,088.52
  6. Step 6: Final answer
    x = 869,701.63

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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.