Home / 945,659.34-1,305,014.22-515,948.40

Finding the Fourth Proportional to 945,659.34, 1,305,014.22 and 515,948.40

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Solution

The fourth proportional to 945,659.34, 1,305,014.22 and 515,948.40 is: 712,011.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,659.34 : 1,305,014.22 = 515,948.40 : x
  2. Step 2: Convert to fraction form
    945,659.34/1,305,014.22 = 515,948.40/x
  3. Step 3: Cross multiply
    945,659.34x = 1,305,014.22 × 515,948.40
  4. Step 4: Simplify right side
    945,659.34x = 673,319,998,786.25
  5. Step 5: Solve for x
    x = 673,319,998,786.25/945,659.34
  6. Step 6: Final answer
    x = 712,011.15

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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.