Home / 873,689.04-1,205,729.68-491,740.56

Finding the Fourth Proportional to 873,689.04, 1,205,729.68 and 491,740.56

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Solution

The fourth proportional to 873,689.04, 1,205,729.68 and 491,740.56 is: 678,623.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,689.04 : 1,205,729.68 = 491,740.56 : x
  2. Step 2: Convert to fraction form
    873,689.04/1,205,729.68 = 491,740.56/x
  3. Step 3: Cross multiply
    873,689.04x = 1,205,729.68 × 491,740.56
  4. Step 4: Simplify right side
    873,689.04x = 592,906,188,051.82
  5. Step 5: Solve for x
    x = 592,906,188,051.82/873,689.04
  6. Step 6: Final answer
    x = 678,623.81

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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.