Home / 742,812.84-1,025,081.70-403,281.12

Finding the Fourth Proportional to 742,812.84, 1,025,081.70 and 403,281.12

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Solution

The fourth proportional to 742,812.84, 1,025,081.70 and 403,281.12 is: 556,527.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,812.84 : 1,025,081.70 = 403,281.12 : x
  2. Step 2: Convert to fraction form
    742,812.84/1,025,081.70 = 403,281.12/x
  3. Step 3: Cross multiply
    742,812.84x = 1,025,081.70 × 403,281.12
  4. Step 4: Simplify right side
    742,812.84x = 413,396,096,067.50
  5. Step 5: Solve for x
    x = 413,396,096,067.50/742,812.84
  6. Step 6: Final answer
    x = 556,527.94

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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.