Home / 766,909.86-1,058,314.41-427,369.38

Finding the Fourth Proportional to 766,909.86, 1,058,314.41 and 427,369.38

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Solution

The fourth proportional to 766,909.86, 1,058,314.41 and 427,369.38 is: 589,757.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,909.86 : 1,058,314.41 = 427,369.38 : x
  2. Step 2: Convert to fraction form
    766,909.86/1,058,314.41 = 427,369.38/x
  3. Step 3: Cross multiply
    766,909.86x = 1,058,314.41 × 427,369.38
  4. Step 4: Simplify right side
    766,909.86x = 452,291,173,246.77
  5. Step 5: Solve for x
    x = 452,291,173,246.77/766,909.86
  6. Step 6: Final answer
    x = 589,757.93

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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.