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Finding the Fourth Proportional to 645,648.14, 890,463.84 and 573,104

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Solution

The fourth proportional to 645,648.14, 890,463.84 and 573,104 is: 790,412.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,648.14 : 890,463.84 = 573,104 : x
  2. Step 2: Convert to fraction form
    645,648.14/890,463.84 = 573,104/x
  3. Step 3: Cross multiply
    645,648.14x = 890,463.84 × 573,104
  4. Step 4: Simplify right side
    645,648.14x = 510,328,388,559.36
  5. Step 5: Solve for x
    x = 510,328,388,559.36/645,648.14
  6. Step 6: Final answer
    x = 790,412.54

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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.