Home / 919,875.72-1,380,041.40-440,468.31

Finding the Fourth Proportional to 919,875.72, 1,380,041.40 and 440,468.31

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Solution

The fourth proportional to 919,875.72, 1,380,041.40 and 440,468.31 is: 660,811.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,875.72 : 1,380,041.40 = 440,468.31 : x
  2. Step 2: Convert to fraction form
    919,875.72/1,380,041.40 = 440,468.31/x
  3. Step 3: Cross multiply
    919,875.72x = 1,380,041.40 × 440,468.31
  4. Step 4: Simplify right side
    919,875.72x = 607,864,503,188.03
  5. Step 5: Solve for x
    x = 607,864,503,188.03/919,875.72
  6. Step 6: Final answer
    x = 660,811.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.