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Finding the Fourth Proportional to 423,841.08, 585,054.15 and 280,647.24

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Solution

The fourth proportional to 423,841.08, 585,054.15 and 280,647.24 is: 387,394.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,841.08 : 585,054.15 = 280,647.24 : x
  2. Step 2: Convert to fraction form
    423,841.08/585,054.15 = 280,647.24/x
  3. Step 3: Cross multiply
    423,841.08x = 585,054.15 × 280,647.24
  4. Step 4: Simplify right side
    423,841.08x = 164,193,832,448.05
  5. Step 5: Solve for x
    x = 164,193,832,448.05/423,841.08
  6. Step 6: Final answer
    x = 387,394.80

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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.