Home / 1,187,920.55-1,639,364.93-671,663.35

Finding the Fourth Proportional to 1,187,920.55, 1,639,364.93 and 671,663.35

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Solution

The fourth proportional to 1,187,920.55, 1,639,364.93 and 671,663.35 is: 926,914.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,920.55 : 1,639,364.93 = 671,663.35 : x
  2. Step 2: Convert to fraction form
    1,187,920.55/1,639,364.93 = 671,663.35/x
  3. Step 3: Cross multiply
    1,187,920.55x = 1,639,364.93 × 671,663.35
  4. Step 4: Simplify right side
    1,187,920.55x = 1,101,101,333,299.59
  5. Step 5: Solve for x
    x = 1,101,101,333,299.59/1,187,920.55
  6. Step 6: Final answer
    x = 926,914.97

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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.