Home / 1,231,369.47-1,699,323.80-687,484.35

Finding the Fourth Proportional to 1,231,369.47, 1,699,323.80 and 687,484.35

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Solution

The fourth proportional to 1,231,369.47, 1,699,323.80 and 687,484.35 is: 948,747.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,369.47 : 1,699,323.80 = 687,484.35 : x
  2. Step 2: Convert to fraction form
    1,231,369.47/1,699,323.80 = 687,484.35/x
  3. Step 3: Cross multiply
    1,231,369.47x = 1,699,323.80 × 687,484.35
  4. Step 4: Simplify right side
    1,231,369.47x = 1,168,258,514,645.11
  5. Step 5: Solve for x
    x = 1,168,258,514,645.11/1,231,369.47
  6. Step 6: Final answer
    x = 948,747.34

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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.