Home / 528,514.12-729,349.98-302,164.36

Finding the Fourth Proportional to 528,514.12, 729,349.98 and 302,164.36

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Solution

The fourth proportional to 528,514.12, 729,349.98 and 302,164.36 is: 416,987.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,514.12 : 729,349.98 = 302,164.36 : x
  2. Step 2: Convert to fraction form
    528,514.12/729,349.98 = 302,164.36/x
  3. Step 3: Cross multiply
    528,514.12x = 729,349.98 × 302,164.36
  4. Step 4: Simplify right side
    528,514.12x = 220,383,569,922.71
  5. Step 5: Solve for x
    x = 220,383,569,922.71/528,514.12
  6. Step 6: Final answer
    x = 416,987.10

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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.