Home / 1,012,590.08-1,396,715.90-649,438.73

Finding the Fourth Proportional to 1,012,590.08, 1,396,715.90 and 649,438.73

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Solution

The fourth proportional to 1,012,590.08, 1,396,715.90 and 649,438.73 is: 895,803.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,590.08 : 1,396,715.90 = 649,438.73 : x
  2. Step 2: Convert to fraction form
    1,012,590.08/1,396,715.90 = 649,438.73/x
  3. Step 3: Cross multiply
    1,012,590.08x = 1,396,715.90 × 649,438.73
  4. Step 4: Simplify right side
    1,012,590.08x = 907,081,400,266.81
  5. Step 5: Solve for x
    x = 907,081,400,266.81/1,012,590.08
  6. Step 6: Final answer
    x = 895,803.17

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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.