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Finding the Fourth Proportional to 656,920.65, 906,715.64 and 370,606.82

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Solution

The fourth proportional to 656,920.65, 906,715.64 and 370,606.82 is: 511,530.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,920.65 : 906,715.64 = 370,606.82 : x
  2. Step 2: Convert to fraction form
    656,920.65/906,715.64 = 370,606.82/x
  3. Step 3: Cross multiply
    656,920.65x = 906,715.64 × 370,606.82
  4. Step 4: Simplify right side
    656,920.65x = 336,034,993,598.05
  5. Step 5: Solve for x
    x = 336,034,993,598.05/656,920.65
  6. Step 6: Final answer
    x = 511,530.57

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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.