Home / 1,221,741.96-1,686,994.47-763,390.50

Finding the Fourth Proportional to 1,221,741.96, 1,686,994.47 and 763,390.50

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Solution

The fourth proportional to 1,221,741.96, 1,686,994.47 and 763,390.50 is: 1,054,097.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,741.96 : 1,686,994.47 = 763,390.50 : x
  2. Step 2: Convert to fraction form
    1,221,741.96/1,686,994.47 = 763,390.50/x
  3. Step 3: Cross multiply
    1,221,741.96x = 1,686,994.47 × 763,390.50
  4. Step 4: Simplify right side
    1,221,741.96x = 1,287,835,551,950.53
  5. Step 5: Solve for x
    x = 1,287,835,551,950.53/1,221,741.96
  6. Step 6: Final answer
    x = 1,054,097.83

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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.