Home / 450,602.03-621,831.41-280,836.16

Finding the Fourth Proportional to 450,602.03, 621,831.41 and 280,836.16

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Solution

The fourth proportional to 450,602.03, 621,831.41 and 280,836.16 is: 387,554.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,602.03 : 621,831.41 = 280,836.16 : x
  2. Step 2: Convert to fraction form
    450,602.03/621,831.41 = 280,836.16/x
  3. Step 3: Cross multiply
    450,602.03x = 621,831.41 × 280,836.16
  4. Step 4: Simplify right side
    450,602.03x = 174,632,745,351.79
  5. Step 5: Solve for x
    x = 174,632,745,351.79/450,602.03
  6. Step 6: Final answer
    x = 387,554.28

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1.5x scale

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.