Home / 971,516.19-1,340,234.78-631,860.51

Finding the Fourth Proportional to 971,516.19, 1,340,234.78 and 631,860.51

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Solution

The fourth proportional to 971,516.19, 1,340,234.78 and 631,860.51 is: 871,669.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,516.19 : 1,340,234.78 = 631,860.51 : x
  2. Step 2: Convert to fraction form
    971,516.19/1,340,234.78 = 631,860.51/x
  3. Step 3: Cross multiply
    971,516.19x = 1,340,234.78 × 631,860.51
  4. Step 4: Simplify right side
    971,516.19x = 846,841,428,451.24
  5. Step 5: Solve for x
    x = 846,841,428,451.24/971,516.19
  6. Step 6: Final answer
    x = 871,669.91

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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.