Home / 971,516.44-1,340,235.12-631,860.76

Finding the Fourth Proportional to 971,516.44, 1,340,235.12 and 631,860.76

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Solution

The fourth proportional to 971,516.44, 1,340,235.12 and 631,860.76 is: 871,670.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,516.44 : 1,340,235.12 = 631,860.76 : x
  2. Step 2: Convert to fraction form
    971,516.44/1,340,235.12 = 631,860.76/x
  3. Step 3: Cross multiply
    971,516.44x = 1,340,235.12 × 631,860.76
  4. Step 4: Simplify right side
    971,516.44x = 846,841,981,501.89
  5. Step 5: Solve for x
    x = 846,841,981,501.89/971,516.44
  6. Step 6: Final answer
    x = 871,670.25

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1.5x scale

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.