Home / 938,642.28-1,405,630.58-859,006.28

Finding the Fourth Proportional to 938,642.28, 1,405,630.58 and 859,006.28

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Solution

The fourth proportional to 938,642.28, 1,405,630.58 and 859,006.28 is: 1,286,374.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,642.28 : 1,405,630.58 = 859,006.28 : x
  2. Step 2: Convert to fraction form
    938,642.28/1,405,630.58 = 859,006.28/x
  3. Step 3: Cross multiply
    938,642.28x = 1,405,630.58 × 859,006.28
  4. Step 4: Simplify right side
    938,642.28x = 1,207,445,495,580.04
  5. Step 5: Solve for x
    x = 1,207,445,495,580.04/938,642.28
  6. Step 6: Final answer
    x = 1,286,374.50

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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.