Home / 905,423.10-1,249,410.75-523,474.50

Finding the Fourth Proportional to 905,423.10, 1,249,410.75 and 523,474.50

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Solution

The fourth proportional to 905,423.10, 1,249,410.75 and 523,474.50 is: 722,352.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,423.10 : 1,249,410.75 = 523,474.50 : x
  2. Step 2: Convert to fraction form
    905,423.10/1,249,410.75 = 523,474.50/x
  3. Step 3: Cross multiply
    905,423.10x = 1,249,410.75 × 523,474.50
  4. Step 4: Simplify right side
    905,423.10x = 654,034,667,650.88
  5. Step 5: Solve for x
    x = 654,034,667,650.88/905,423.10
  6. Step 6: Final answer
    x = 722,352.53

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Double scale
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1.5x scale

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.