Home / 1,293,488.69-1,785,069.54-720,529.11

Finding the Fourth Proportional to 1,293,488.69, 1,785,069.54 and 720,529.11

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Solution

The fourth proportional to 1,293,488.69, 1,785,069.54 and 720,529.11 is: 994,360.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,488.69 : 1,785,069.54 = 720,529.11 : x
  2. Step 2: Convert to fraction form
    1,293,488.69/1,785,069.54 = 720,529.11/x
  3. Step 3: Cross multiply
    1,293,488.69x = 1,785,069.54 × 720,529.11
  4. Step 4: Simplify right side
    1,293,488.69x = 1,286,194,566,944.31
  5. Step 5: Solve for x
    x = 1,286,194,566,944.31/1,293,488.69
  6. Step 6: Final answer
    x = 994,360.90

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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.