Home / 690,722.70-952,944.48-418,594.28

Finding the Fourth Proportional to 690,722.70, 952,944.48 and 418,594.28

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Solution

The fourth proportional to 690,722.70, 952,944.48 and 418,594.28 is: 577,506.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,722.70 : 952,944.48 = 418,594.28 : x
  2. Step 2: Convert to fraction form
    690,722.70/952,944.48 = 418,594.28/x
  3. Step 3: Cross multiply
    690,722.70x = 952,944.48 × 418,594.28
  4. Step 4: Simplify right side
    690,722.70x = 398,897,108,485.57
  5. Step 5: Solve for x
    x = 398,897,108,485.57/690,722.70
  6. Step 6: Final answer
    x = 577,506.88

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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.