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Finding the Fourth Proportional to 669,340.16, 923,687.52 and 401,068.16

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Solution

The fourth proportional to 669,340.16, 923,687.52 and 401,068.16 is: 553,472.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,340.16 : 923,687.52 = 401,068.16 : x
  2. Step 2: Convert to fraction form
    669,340.16/923,687.52 = 401,068.16/x
  3. Step 3: Cross multiply
    669,340.16x = 923,687.52 × 401,068.16
  4. Step 4: Simplify right side
    669,340.16x = 370,461,654,061.36
  5. Step 5: Solve for x
    x = 370,461,654,061.36/669,340.16
  6. Step 6: Final answer
    x = 553,472.92

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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.