Home / 529,971.33-731,324.43-288,248.72

Finding the Fourth Proportional to 529,971.33, 731,324.43 and 288,248.72

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Solution

The fourth proportional to 529,971.33, 731,324.43 and 288,248.72 is: 397,763.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,971.33 : 731,324.43 = 288,248.72 : x
  2. Step 2: Convert to fraction form
    529,971.33/731,324.43 = 288,248.72/x
  3. Step 3: Cross multiply
    529,971.33x = 731,324.43 × 288,248.72
  4. Step 4: Simplify right side
    529,971.33x = 210,803,327,195.61
  5. Step 5: Solve for x
    x = 210,803,327,195.61/529,971.33
  6. Step 6: Final answer
    x = 397,763.64

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1.5x scale

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.