Home / 399,141.03-598,886.91-209,557.33

Finding the Fourth Proportional to 399,141.03, 598,886.91 and 209,557.33

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Solution

The fourth proportional to 399,141.03, 598,886.91 and 209,557.33 is: 314,428.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,141.03 : 598,886.91 = 209,557.33 : x
  2. Step 2: Convert to fraction form
    399,141.03/598,886.91 = 209,557.33/x
  3. Step 3: Cross multiply
    399,141.03x = 598,886.91 × 209,557.33
  4. Step 4: Simplify right side
    399,141.03x = 125,501,141,831.55
  5. Step 5: Solve for x
    x = 125,501,141,831.55/399,141.03
  6. Step 6: Final answer
    x = 314,428.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.