Home / 1,231,384.22-1,699,293.62-687,528.34

Finding the Fourth Proportional to 1,231,384.22, 1,699,293.62 and 687,528.34

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Solution

The fourth proportional to 1,231,384.22, 1,699,293.62 and 687,528.34 is: 948,779.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,384.22 : 1,699,293.62 = 687,528.34 : x
  2. Step 2: Convert to fraction form
    1,231,384.22/1,699,293.62 = 687,528.34/x
  3. Step 3: Cross multiply
    1,231,384.22x = 1,699,293.62 × 687,528.34
  4. Step 4: Simplify right side
    1,231,384.22x = 1,168,312,521,731.19
  5. Step 5: Solve for x
    x = 1,168,312,521,731.19/1,231,384.22
  6. Step 6: Final answer
    x = 948,779.84

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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.