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Finding the Fourth Proportional to 540,042.42, 745,349.50 and 313,819.14

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Solution

The fourth proportional to 540,042.42, 745,349.50 and 313,819.14 is: 433,123.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,042.42 : 745,349.50 = 313,819.14 : x
  2. Step 2: Convert to fraction form
    540,042.42/745,349.50 = 313,819.14/x
  3. Step 3: Cross multiply
    540,042.42x = 745,349.50 × 313,819.14
  4. Step 4: Simplify right side
    540,042.42x = 233,904,939,089.43
  5. Step 5: Solve for x
    x = 233,904,939,089.43/540,042.42
  6. Step 6: Final answer
    x = 433,123.27

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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.