Home / 742,756.50-1,025,016.39-403,224.75

Finding the Fourth Proportional to 742,756.50, 1,025,016.39 and 403,224.75

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Solution

The fourth proportional to 742,756.50, 1,025,016.39 and 403,224.75 is: 556,456.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,756.50 : 1,025,016.39 = 403,224.75 : x
  2. Step 2: Convert to fraction form
    742,756.50/1,025,016.39 = 403,224.75/x
  3. Step 3: Cross multiply
    742,756.50x = 1,025,016.39 × 403,224.75
  4. Step 4: Simplify right side
    742,756.50x = 413,311,977,603.65
  5. Step 5: Solve for x
    x = 413,311,977,603.65/742,756.50
  6. Step 6: Final answer
    x = 556,456.90

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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.