Home / 1,107,705.61-1,528,755.98-642,661.93

Finding the Fourth Proportional to 1,107,705.61, 1,528,755.98 and 642,661.93

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Solution

The fourth proportional to 1,107,705.61, 1,528,755.98 and 642,661.93 is: 886,944.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,705.61 : 1,528,755.98 = 642,661.93 : x
  2. Step 2: Convert to fraction form
    1,107,705.61/1,528,755.98 = 642,661.93/x
  3. Step 3: Cross multiply
    1,107,705.61x = 1,528,755.98 × 642,661.93
  4. Step 4: Simplify right side
    1,107,705.61x = 982,473,268,605.84
  5. Step 5: Solve for x
    x = 982,473,268,605.84/1,107,705.61
  6. Step 6: Final answer
    x = 886,944.38

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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.