Home / 935,811.77-1,290,248.33-780,984.86

Finding the Fourth Proportional to 935,811.77, 1,290,248.33 and 780,984.86

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Solution

The fourth proportional to 935,811.77, 1,290,248.33 and 780,984.86 is: 1,076,781.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,811.77 : 1,290,248.33 = 780,984.86 : x
  2. Step 2: Convert to fraction form
    935,811.77/1,290,248.33 = 780,984.86/x
  3. Step 3: Cross multiply
    935,811.77x = 1,290,248.33 × 780,984.86
  4. Step 4: Simplify right side
    935,811.77x = 1,007,664,401,014.12
  5. Step 5: Solve for x
    x = 1,007,664,401,014.12/935,811.77
  6. Step 6: Final answer
    x = 1,076,781.08

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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.