Home / 528,531.12-729,373.44-302,181.36

Finding the Fourth Proportional to 528,531.12, 729,373.44 and 302,181.36

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Solution

The fourth proportional to 528,531.12, 729,373.44 and 302,181.36 is: 417,010.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,531.12 : 729,373.44 = 302,181.36 : x
  2. Step 2: Convert to fraction form
    528,531.12/729,373.44 = 302,181.36/x
  3. Step 3: Cross multiply
    528,531.12x = 729,373.44 × 302,181.36
  4. Step 4: Simplify right side
    528,531.12x = 220,403,058,047.08
  5. Step 5: Solve for x
    x = 220,403,058,047.08/528,531.12
  6. Step 6: Final answer
    x = 417,010.56

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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.