Home / 1,455,937.70-2,009,195.94-811,343.74

Finding the Fourth Proportional to 1,455,937.70, 2,009,195.94 and 811,343.74

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Solution

The fourth proportional to 1,455,937.70, 2,009,195.94 and 811,343.74 is: 1,119,655.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,937.70 : 2,009,195.94 = 811,343.74 : x
  2. Step 2: Convert to fraction form
    1,455,937.70/2,009,195.94 = 811,343.74/x
  3. Step 3: Cross multiply
    1,455,937.70x = 2,009,195.94 × 811,343.74
  4. Step 4: Simplify right side
    1,455,937.70x = 1,630,148,548,352.42
  5. Step 5: Solve for x
    x = 1,630,148,548,352.42/1,455,937.70
  6. Step 6: Final answer
    x = 1,119,655.43

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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.