Home / 724,640.40-1,085,648.40-619,664.40

Finding the Fourth Proportional to 724,640.40, 1,085,648.40 and 619,664.40

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Solution

The fourth proportional to 724,640.40, 1,085,648.40 and 619,664.40 is: 928,374.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,640.40 : 1,085,648.40 = 619,664.40 : x
  2. Step 2: Convert to fraction form
    724,640.40/1,085,648.40 = 619,664.40/x
  3. Step 3: Cross multiply
    724,640.40x = 1,085,648.40 × 619,664.40
  4. Step 4: Simplify right side
    724,640.40x = 672,737,664,396.96
  5. Step 5: Solve for x
    x = 672,737,664,396.96/724,640.40
  6. Step 6: Final answer
    x = 928,374.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.