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Finding the Fourth Proportional to 450,601.03, 621,830.03 and 280,835.16

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Solution

The fourth proportional to 450,601.03, 621,830.03 and 280,835.16 is: 387,552.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,601.03 : 621,830.03 = 280,835.16 : x
  2. Step 2: Convert to fraction form
    450,601.03/621,830.03 = 280,835.16/x
  3. Step 3: Cross multiply
    450,601.03x = 621,830.03 × 280,835.16
  4. Step 4: Simplify right side
    450,601.03x = 174,631,733,811.51
  5. Step 5: Solve for x
    x = 174,631,733,811.51/450,601.03
  6. Step 6: Final answer
    x = 387,552.89

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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.