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Finding the Fourth Proportional to 641,958.72, 885,798.72 and 370,037.76

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Solution

The fourth proportional to 641,958.72, 885,798.72 and 370,037.76 is: 510,591.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,958.72 : 885,798.72 = 370,037.76 : x
  2. Step 2: Convert to fraction form
    641,958.72/885,798.72 = 370,037.76/x
  3. Step 3: Cross multiply
    641,958.72x = 885,798.72 × 370,037.76
  4. Step 4: Simplify right side
    641,958.72x = 327,778,974,159.67
  5. Step 5: Solve for x
    x = 327,778,974,159.67/641,958.72
  6. Step 6: Final answer
    x = 510,591.98

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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.