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Finding the Fourth Proportional to 442,883.70, 618,637.50 and 442,883.70

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Solution

The fourth proportional to 442,883.70, 618,637.50 and 442,883.70 is: 618,637.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,883.70 : 618,637.50 = 442,883.70 : x
  2. Step 2: Convert to fraction form
    442,883.70/618,637.50 = 442,883.70/x
  3. Step 3: Cross multiply
    442,883.70x = 618,637.50 × 442,883.70
  4. Step 4: Simplify right side
    442,883.70x = 273,984,464,958.75
  5. Step 5: Solve for x
    x = 273,984,464,958.75/442,883.70
  6. Step 6: Final answer
    x = 618,637.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.