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Finding the Fourth Proportional to 528,873.03, 729,959.85 and 325,030.86

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Solution

The fourth proportional to 528,873.03, 729,959.85 and 325,030.86 is: 448,613.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,873.03 : 729,959.85 = 325,030.86 : x
  2. Step 2: Convert to fraction form
    528,873.03/729,959.85 = 325,030.86/x
  3. Step 3: Cross multiply
    528,873.03x = 729,959.85 × 325,030.86
  4. Step 4: Simplify right side
    528,873.03x = 237,259,477,810.97
  5. Step 5: Solve for x
    x = 237,259,477,810.97/528,873.03
  6. Step 6: Final answer
    x = 448,613.30

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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.