Home / 1,215,685.29-1,821,897.95-946,138.92

Finding the Fourth Proportional to 1,215,685.29, 1,821,897.95 and 946,138.92

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Solution

The fourth proportional to 1,215,685.29, 1,821,897.95 and 946,138.92 is: 1,417,939.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,685.29 : 1,821,897.95 = 946,138.92 : x
  2. Step 2: Convert to fraction form
    1,215,685.29/1,821,897.95 = 946,138.92/x
  3. Step 3: Cross multiply
    1,215,685.29x = 1,821,897.95 × 946,138.92
  4. Step 4: Simplify right side
    1,215,685.29x = 1,723,768,558,763.21
  5. Step 5: Solve for x
    x = 1,723,768,558,763.21/1,215,685.29
  6. Step 6: Final answer
    x = 1,417,939.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.