Home / 742,561.88-1,113,664.41-342,818.60

Finding the Fourth Proportional to 742,561.88, 1,113,664.41 and 342,818.60

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Solution

The fourth proportional to 742,561.88, 1,113,664.41 and 342,818.60 is: 514,145.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,561.88 : 1,113,664.41 = 342,818.60 : x
  2. Step 2: Convert to fraction form
    742,561.88/1,113,664.41 = 342,818.60/x
  3. Step 3: Cross multiply
    742,561.88x = 1,113,664.41 × 342,818.60
  4. Step 4: Simplify right side
    742,561.88x = 381,784,868,337.70
  5. Step 5: Solve for x
    x = 381,784,868,337.70/742,561.88
  6. Step 6: Final answer
    x = 514,145.53

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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.