Home / 349,831.40-524,747.10-279,847.40

Finding the Fourth Proportional to 349,831.40, 524,747.10 and 279,847.40

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Solution

The fourth proportional to 349,831.40, 524,747.10 and 279,847.40 is: 419,771.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,831.40 : 524,747.10 = 279,847.40 : x
  2. Step 2: Convert to fraction form
    349,831.40/524,747.10 = 279,847.40/x
  3. Step 3: Cross multiply
    349,831.40x = 524,747.10 × 279,847.40
  4. Step 4: Simplify right side
    349,831.40x = 146,849,111,592.54
  5. Step 5: Solve for x
    x = 146,849,111,592.54/349,831.40
  6. Step 6: Final answer
    x = 419,771.10

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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.