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Finding the Fourth Proportional to 534,637.32, 737,705.72 and 305,089.80

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Solution

The fourth proportional to 534,637.32, 737,705.72 and 305,089.80 is: 420,970.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,637.32 : 737,705.72 = 305,089.80 : x
  2. Step 2: Convert to fraction form
    534,637.32/737,705.72 = 305,089.80/x
  3. Step 3: Cross multiply
    534,637.32x = 737,705.72 × 305,089.80
  4. Step 4: Simplify right side
    534,637.32x = 225,066,489,048.21
  5. Step 5: Solve for x
    x = 225,066,489,048.21/534,637.32
  6. Step 6: Final answer
    x = 420,970.40

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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.