Home / 742,688.97-1,113,854.90-342,945.69

Finding the Fourth Proportional to 742,688.97, 1,113,854.90 and 342,945.69

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Solution

The fourth proportional to 742,688.97, 1,113,854.90 and 342,945.69 is: 514,336.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,688.97 : 1,113,854.90 = 342,945.69 : x
  2. Step 2: Convert to fraction form
    742,688.97/1,113,854.90 = 342,945.69/x
  3. Step 3: Cross multiply
    742,688.97x = 1,113,854.90 × 342,945.69
  4. Step 4: Simplify right side
    742,688.97x = 381,991,735,525.65
  5. Step 5: Solve for x
    x = 381,991,735,525.65/742,688.97
  6. Step 6: Final answer
    x = 514,336.08

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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.