Home / 990,873.16-1,367,359.18-561,156.39

Finding the Fourth Proportional to 990,873.16, 1,367,359.18 and 561,156.39

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Solution

The fourth proportional to 990,873.16, 1,367,359.18 and 561,156.39 is: 774,369.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,873.16 : 1,367,359.18 = 561,156.39 : x
  2. Step 2: Convert to fraction form
    990,873.16/1,367,359.18 = 561,156.39/x
  3. Step 3: Cross multiply
    990,873.16x = 1,367,359.18 × 561,156.39
  4. Step 4: Simplify right side
    990,873.16x = 767,302,341,282.16
  5. Step 5: Solve for x
    x = 767,302,341,282.16/990,873.16
  6. Step 6: Final answer
    x = 774,369.89

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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.