Home / 991,904.90-1,368,842.37-539,205.62

Finding the Fourth Proportional to 991,904.90, 1,368,842.37 and 539,205.62

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Solution

The fourth proportional to 991,904.90, 1,368,842.37 and 539,205.62 is: 744,111.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,904.90 : 1,368,842.37 = 539,205.62 : x
  2. Step 2: Convert to fraction form
    991,904.90/1,368,842.37 = 539,205.62/x
  3. Step 3: Cross multiply
    991,904.90x = 1,368,842.37 × 539,205.62
  4. Step 4: Simplify right side
    991,904.90x = 738,087,498,798.12
  5. Step 5: Solve for x
    x = 738,087,498,798.12/991,904.90
  6. Step 6: Final answer
    x = 744,111.15

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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.