Home / 529,900.83-731,256.08-288,178.20

Finding the Fourth Proportional to 529,900.83, 731,256.08 and 288,178.20

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Solution

The fourth proportional to 529,900.83, 731,256.08 and 288,178.20 is: 397,682.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,900.83 : 731,256.08 = 288,178.20 : x
  2. Step 2: Convert to fraction form
    529,900.83/731,256.08 = 288,178.20/x
  3. Step 3: Cross multiply
    529,900.83x = 731,256.08 × 288,178.20
  4. Step 4: Simplify right side
    529,900.83x = 210,732,059,432.57
  5. Step 5: Solve for x
    x = 210,732,059,432.57/529,900.83
  6. Step 6: Final answer
    x = 397,682.07

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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.