Home / 742,255.65-1,024,317.90-402,723.90

Finding the Fourth Proportional to 742,255.65, 1,024,317.90 and 402,723.90

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Solution

The fourth proportional to 742,255.65, 1,024,317.90 and 402,723.90 is: 555,761.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,255.65 : 1,024,317.90 = 402,723.90 : x
  2. Step 2: Convert to fraction form
    742,255.65/1,024,317.90 = 402,723.90/x
  3. Step 3: Cross multiply
    742,255.65x = 1,024,317.90 × 402,723.90
  4. Step 4: Simplify right side
    742,255.65x = 412,517,299,527.81
  5. Step 5: Solve for x
    x = 412,517,299,527.81/742,255.65
  6. Step 6: Final answer
    x = 555,761.75

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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.