Home / 720,014.60-1,077,948.30-440,078.60

Finding the Fourth Proportional to 720,014.60, 1,077,948.30 and 440,078.60

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Solution

The fourth proportional to 720,014.60, 1,077,948.30 and 440,078.60 is: 658,850.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,014.60 : 1,077,948.30 = 440,078.60 : x
  2. Step 2: Convert to fraction form
    720,014.60/1,077,948.30 = 440,078.60/x
  3. Step 3: Cross multiply
    720,014.60x = 1,077,948.30 × 440,078.60
  4. Step 4: Simplify right side
    720,014.60x = 474,381,978,736.38
  5. Step 5: Solve for x
    x = 474,381,978,736.38/720,014.60
  6. Step 6: Final answer
    x = 658,850.50

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1.5x scale

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.