Home / 766,908.36-1,058,312.34-427,367.88

Finding the Fourth Proportional to 766,908.36, 1,058,312.34 and 427,367.88

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Solution

The fourth proportional to 766,908.36, 1,058,312.34 and 427,367.88 is: 589,755.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,908.36 : 1,058,312.34 = 427,367.88 : x
  2. Step 2: Convert to fraction form
    766,908.36/1,058,312.34 = 427,367.88/x
  3. Step 3: Cross multiply
    766,908.36x = 1,058,312.34 × 427,367.88
  4. Step 4: Simplify right side
    766,908.36x = 452,288,701,123.64
  5. Step 5: Solve for x
    x = 452,288,701,123.64/766,908.36
  6. Step 6: Final answer
    x = 589,755.86

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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.