Home / 1,212,089.60-1,818,134.40-876,166.40

Finding the Fourth Proportional to 1,212,089.60, 1,818,134.40 and 876,166.40

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Solution

The fourth proportional to 1,212,089.60, 1,818,134.40 and 876,166.40 is: 1,314,249.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,089.60 : 1,818,134.40 = 876,166.40 : x
  2. Step 2: Convert to fraction form
    1,212,089.60/1,818,134.40 = 876,166.40/x
  3. Step 3: Cross multiply
    1,212,089.60x = 1,818,134.40 × 876,166.40
  4. Step 4: Simplify right side
    1,212,089.60x = 1,592,988,271,964.16
  5. Step 5: Solve for x
    x = 1,592,988,271,964.16/1,212,089.60
  6. Step 6: Final answer
    x = 1,314,249.60

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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.