Home / 528,499.07-729,320.91-310,732.29

Finding the Fourth Proportional to 528,499.07, 729,320.91 and 310,732.29

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Solution

The fourth proportional to 528,499.07, 729,320.91 and 310,732.29 is: 428,805.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,499.07 : 729,320.91 = 310,732.29 : x
  2. Step 2: Convert to fraction form
    528,499.07/729,320.91 = 310,732.29/x
  3. Step 3: Cross multiply
    528,499.07x = 729,320.91 × 310,732.29
  4. Step 4: Simplify right side
    528,499.07x = 226,623,556,509.18
  5. Step 5: Solve for x
    x = 226,623,556,509.18/528,499.07
  6. Step 6: Final answer
    x = 428,805.97

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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.