Home / 1,238,246.96-1,708,056.93-778,633.88

Finding the Fourth Proportional to 1,238,246.96, 1,708,056.93 and 778,633.88

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Solution

The fourth proportional to 1,238,246.96, 1,708,056.93 and 778,633.88 is: 1,074,059.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,246.96 : 1,708,056.93 = 778,633.88 : x
  2. Step 2: Convert to fraction form
    1,238,246.96/1,708,056.93 = 778,633.88/x
  3. Step 3: Cross multiply
    1,238,246.96x = 1,708,056.93 × 778,633.88
  4. Step 4: Simplify right side
    1,238,246.96x = 1,329,950,986,126.50
  5. Step 5: Solve for x
    x = 1,329,950,986,126.50/1,238,246.96
  6. Step 6: Final answer
    x = 1,074,059.57

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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.