Home / 641,980.56-885,931.75-370,046.65

Finding the Fourth Proportional to 641,980.56, 885,931.75 and 370,046.65

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Solution

The fourth proportional to 641,980.56, 885,931.75 and 370,046.65 is: 510,663.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,980.56 : 885,931.75 = 370,046.65 : x
  2. Step 2: Convert to fraction form
    641,980.56/885,931.75 = 370,046.65/x
  3. Step 3: Cross multiply
    641,980.56x = 885,931.75 × 370,046.65
  4. Step 4: Simplify right side
    641,980.56x = 327,836,076,216.14
  5. Step 5: Solve for x
    x = 327,836,076,216.14/641,980.56
  6. Step 6: Final answer
    x = 510,663.56

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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.