Home / 497,079.12-686,030.94-282,288.18

Finding the Fourth Proportional to 497,079.12, 686,030.94 and 282,288.18

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Solution

The fourth proportional to 497,079.12, 686,030.94 and 282,288.18 is: 389,592.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,079.12 : 686,030.94 = 282,288.18 : x
  2. Step 2: Convert to fraction form
    497,079.12/686,030.94 = 282,288.18/x
  3. Step 3: Cross multiply
    497,079.12x = 686,030.94 × 282,288.18
  4. Step 4: Simplify right side
    497,079.12x = 193,658,425,476.29
  5. Step 5: Solve for x
    x = 193,658,425,476.29/497,079.12
  6. Step 6: Final answer
    x = 389,592.76

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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.