Home / 693,128.26-1,039,429.95-272,174.50

Finding the Fourth Proportional to 693,128.26, 1,039,429.95 and 272,174.50

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Solution

The fourth proportional to 693,128.26, 1,039,429.95 and 272,174.50 is: 408,158.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,128.26 : 1,039,429.95 = 272,174.50 : x
  2. Step 2: Convert to fraction form
    693,128.26/1,039,429.95 = 272,174.50/x
  3. Step 3: Cross multiply
    693,128.26x = 1,039,429.95 × 272,174.50
  4. Step 4: Simplify right side
    693,128.26x = 282,906,326,926.28
  5. Step 5: Solve for x
    x = 282,906,326,926.28/693,128.26
  6. Step 6: Final answer
    x = 408,158.70

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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.