Home / 742,558.41-1,113,659.13-342,815.22

Finding the Fourth Proportional to 742,558.41, 1,113,659.13 and 342,815.22

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Solution

The fourth proportional to 742,558.41, 1,113,659.13 and 342,815.22 is: 514,140.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,558.41 : 1,113,659.13 = 342,815.22 : x
  2. Step 2: Convert to fraction form
    742,558.41/1,113,659.13 = 342,815.22/x
  3. Step 3: Cross multiply
    742,558.41x = 1,113,659.13 × 342,815.22
  4. Step 4: Simplify right side
    742,558.41x = 381,779,299,655.96
  5. Step 5: Solve for x
    x = 381,779,299,655.96/742,558.41
  6. Step 6: Final answer
    x = 514,140.43

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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.