Home / 628,501.26-867,330.12-342,021.27

Finding the Fourth Proportional to 628,501.26, 867,330.12 and 342,021.27

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Solution

The fourth proportional to 628,501.26, 867,330.12 and 342,021.27 is: 471,988.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,501.26 : 867,330.12 = 342,021.27 : x
  2. Step 2: Convert to fraction form
    628,501.26/867,330.12 = 342,021.27/x
  3. Step 3: Cross multiply
    628,501.26x = 867,330.12 × 342,021.27
  4. Step 4: Simplify right side
    628,501.26x = 296,645,349,151.65
  5. Step 5: Solve for x
    x = 296,645,349,151.65/628,501.26
  6. Step 6: Final answer
    x = 471,988.47

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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.