Home / 658,130.52-987,070.89-320,831.94

Finding the Fourth Proportional to 658,130.52, 987,070.89 and 320,831.94

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Solution

The fourth proportional to 658,130.52, 987,070.89 and 320,831.94 is: 481,187.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,130.52 : 987,070.89 = 320,831.94 : x
  2. Step 2: Convert to fraction form
    658,130.52/987,070.89 = 320,831.94/x
  3. Step 3: Cross multiply
    658,130.52x = 987,070.89 × 320,831.94
  4. Step 4: Simplify right side
    658,130.52x = 316,683,868,556.23
  5. Step 5: Solve for x
    x = 316,683,868,556.23/658,130.52
  6. Step 6: Final answer
    x = 481,187.03

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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.