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Finding the Fourth Proportional to 413,831.70, 620,747.55 and 245,870.10

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Solution

The fourth proportional to 413,831.70, 620,747.55 and 245,870.10 is: 368,805.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,831.70 : 620,747.55 = 245,870.10 : x
  2. Step 2: Convert to fraction form
    413,831.70/620,747.55 = 245,870.10/x
  3. Step 3: Cross multiply
    413,831.70x = 620,747.55 × 245,870.10
  4. Step 4: Simplify right side
    413,831.70x = 152,623,262,193.26
  5. Step 5: Solve for x
    x = 152,623,262,193.26/413,831.70
  6. Step 6: Final answer
    x = 368,805.15

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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.