Home / 528,519.12-729,356.88-302,169.36

Finding the Fourth Proportional to 528,519.12, 729,356.88 and 302,169.36

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Solution

The fourth proportional to 528,519.12, 729,356.88 and 302,169.36 is: 416,994.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,519.12 : 729,356.88 = 302,169.36 : x
  2. Step 2: Convert to fraction form
    528,519.12/729,356.88 = 302,169.36/x
  3. Step 3: Cross multiply
    528,519.12x = 729,356.88 × 302,169.36
  4. Step 4: Simplify right side
    528,519.12x = 220,389,301,641.20
  5. Step 5: Solve for x
    x = 220,389,301,641.20/528,519.12
  6. Step 6: Final answer
    x = 416,994.00

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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.