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Finding the Fourth Proportional to 451,590.69, 622,909.53 and 290,168.22

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Solution

The fourth proportional to 451,590.69, 622,909.53 and 290,168.22 is: 400,248.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,590.69 : 622,909.53 = 290,168.22 : x
  2. Step 2: Convert to fraction form
    451,590.69/622,909.53 = 290,168.22/x
  3. Step 3: Cross multiply
    451,590.69x = 622,909.53 × 290,168.22
  4. Step 4: Simplify right side
    451,590.69x = 180,748,549,541.14
  5. Step 5: Solve for x
    x = 180,748,549,541.14/451,590.69
  6. Step 6: Final answer
    x = 400,248.62

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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.