Home / 990,869.01-1,367,353.45-561,152.20

Finding the Fourth Proportional to 990,869.01, 1,367,353.45 and 561,152.20

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Solution

The fourth proportional to 990,869.01, 1,367,353.45 and 561,152.20 is: 774,364.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,869.01 : 1,367,353.45 = 561,152.20 : x
  2. Step 2: Convert to fraction form
    990,869.01/1,367,353.45 = 561,152.20/x
  3. Step 3: Cross multiply
    990,869.01x = 1,367,353.45 × 561,152.20
  4. Step 4: Simplify right side
    990,869.01x = 767,293,396,645.09
  5. Step 5: Solve for x
    x = 767,293,396,645.09/990,869.01
  6. Step 6: Final answer
    x = 774,364.11

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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.