Home / 1,038,475.08-1,432,873.19-780,627.78

Finding the Fourth Proportional to 1,038,475.08, 1,432,873.19 and 780,627.78

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Solution

The fourth proportional to 1,038,475.08, 1,432,873.19 and 780,627.78 is: 1,077,099.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,475.08 : 1,432,873.19 = 780,627.78 : x
  2. Step 2: Convert to fraction form
    1,038,475.08/1,432,873.19 = 780,627.78/x
  3. Step 3: Cross multiply
    1,038,475.08x = 1,432,873.19 × 780,627.78
  4. Step 4: Simplify right side
    1,038,475.08x = 1,118,540,619,282.79
  5. Step 5: Solve for x
    x = 1,118,540,619,282.79/1,038,475.08
  6. Step 6: Final answer
    x = 1,077,099.14

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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.