Home / 1,605,436.20-2,215,416.84-916,972.86

Finding the Fourth Proportional to 1,605,436.20, 2,215,416.84 and 916,972.86

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Solution

The fourth proportional to 1,605,436.20, 2,215,416.84 and 916,972.86 is: 1,265,373.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,436.20 : 2,215,416.84 = 916,972.86 : x
  2. Step 2: Convert to fraction form
    1,605,436.20/2,215,416.84 = 916,972.86/x
  3. Step 3: Cross multiply
    1,605,436.20x = 2,215,416.84 × 916,972.86
  4. Step 4: Simplify right side
    1,605,436.20x = 2,031,477,115,866.96
  5. Step 5: Solve for x
    x = 2,031,477,115,866.96/1,605,436.20
  6. Step 6: Final answer
    x = 1,265,373.93

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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.