Home / 1,187,741.96-1,639,063.78-671,488.05

Finding the Fourth Proportional to 1,187,741.96, 1,639,063.78 and 671,488.05

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Solution

The fourth proportional to 1,187,741.96, 1,639,063.78 and 671,488.05 is: 926,642.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,741.96 : 1,639,063.78 = 671,488.05 : x
  2. Step 2: Convert to fraction form
    1,187,741.96/1,639,063.78 = 671,488.05/x
  3. Step 3: Cross multiply
    1,187,741.96x = 1,639,063.78 × 671,488.05
  4. Step 4: Simplify right side
    1,187,741.96x = 1,100,611,739,779.11
  5. Step 5: Solve for x
    x = 1,100,611,739,779.11/1,187,741.96
  6. Step 6: Final answer
    x = 926,642.13

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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.