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Finding the Fourth Proportional to 626,903.37, 940,514.22 and 290,186.91

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Solution

The fourth proportional to 626,903.37, 940,514.22 and 290,186.91 is: 435,354.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,903.37 : 940,514.22 = 290,186.91 : x
  2. Step 2: Convert to fraction form
    626,903.37/940,514.22 = 290,186.91/x
  3. Step 3: Cross multiply
    626,903.37x = 940,514.22 × 290,186.91
  4. Step 4: Simplify right side
    626,903.37x = 272,924,915,312.86
  5. Step 5: Solve for x
    x = 272,924,915,312.86/626,903.37
  6. Step 6: Final answer
    x = 435,354.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.