Home / 1,217,437.38-1,680,601.59-727,579.71

Finding the Fourth Proportional to 1,217,437.38, 1,680,601.59 and 727,579.71

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Solution

The fourth proportional to 1,217,437.38, 1,680,601.59 and 727,579.71 is: 1,004,381.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,437.38 : 1,680,601.59 = 727,579.71 : x
  2. Step 2: Convert to fraction form
    1,217,437.38/1,680,601.59 = 727,579.71/x
  3. Step 3: Cross multiply
    1,217,437.38x = 1,680,601.59 × 727,579.71
  4. Step 4: Simplify right side
    1,217,437.38x = 1,222,771,617,477.74
  5. Step 5: Solve for x
    x = 1,222,771,617,477.74/1,217,437.38
  6. Step 6: Final answer
    x = 1,004,381.53

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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.