Home / 1,012,117.89-1,395,818.11-839,763.01

Finding the Fourth Proportional to 1,012,117.89, 1,395,818.11 and 839,763.01

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Solution

The fourth proportional to 1,012,117.89, 1,395,818.11 and 839,763.01 is: 1,158,122.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,117.89 : 1,395,818.11 = 839,763.01 : x
  2. Step 2: Convert to fraction form
    1,012,117.89/1,395,818.11 = 839,763.01/x
  3. Step 3: Cross multiply
    1,012,117.89x = 1,395,818.11 × 839,763.01
  4. Step 4: Simplify right side
    1,012,117.89x = 1,172,156,417,466.11
  5. Step 5: Solve for x
    x = 1,172,156,417,466.11/1,012,117.89
  6. Step 6: Final answer
    x = 1,158,122.42

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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.