Home / 400,669.81-552,924.47-219,393.20

Finding the Fourth Proportional to 400,669.81, 552,924.47 and 219,393.20

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Solution

The fourth proportional to 400,669.81, 552,924.47 and 219,393.20 is: 302,762.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,669.81 : 552,924.47 = 219,393.20 : x
  2. Step 2: Convert to fraction form
    400,669.81/552,924.47 = 219,393.20/x
  3. Step 3: Cross multiply
    400,669.81x = 552,924.47 × 219,393.20
  4. Step 4: Simplify right side
    400,669.81x = 121,307,868,831.60
  5. Step 5: Solve for x
    x = 121,307,868,831.60/400,669.81
  6. Step 6: Final answer
    x = 302,762.69

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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.