Home / 742,915.74-1,025,194.96-403,376.22

Finding the Fourth Proportional to 742,915.74, 1,025,194.96 and 403,376.22

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Solution

The fourth proportional to 742,915.74, 1,025,194.96 and 403,376.22 is: 556,643.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,915.74 : 1,025,194.96 = 403,376.22 : x
  2. Step 2: Convert to fraction form
    742,915.74/1,025,194.96 = 403,376.22/x
  3. Step 3: Cross multiply
    742,915.74x = 1,025,194.96 × 403,376.22
  4. Step 4: Simplify right side
    742,915.74x = 413,539,267,727.85
  5. Step 5: Solve for x
    x = 413,539,267,727.85/742,915.74
  6. Step 6: Final answer
    x = 556,643.57

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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.