Home / 1,207,131.21-1,665,985.95-723,962.16

Finding the Fourth Proportional to 1,207,131.21, 1,665,985.95 and 723,962.16

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Solution

The fourth proportional to 1,207,131.21, 1,665,985.95 and 723,962.16 is: 999,154.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,131.21 : 1,665,985.95 = 723,962.16 : x
  2. Step 2: Convert to fraction form
    1,207,131.21/1,665,985.95 = 723,962.16/x
  3. Step 3: Cross multiply
    1,207,131.21x = 1,665,985.95 × 723,962.16
  4. Step 4: Simplify right side
    1,207,131.21x = 1,206,110,786,891.65
  5. Step 5: Solve for x
    x = 1,206,110,786,891.65/1,207,131.21
  6. Step 6: Final answer
    x = 999,154.67

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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.