Home / 742,540.54-1,024,706.38-403,008.78

Finding the Fourth Proportional to 742,540.54, 1,024,706.38 and 403,008.78

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Solution

The fourth proportional to 742,540.54, 1,024,706.38 and 403,008.78 is: 556,152.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,540.54 : 1,024,706.38 = 403,008.78 : x
  2. Step 2: Convert to fraction form
    742,540.54/1,024,706.38 = 403,008.78/x
  3. Step 3: Cross multiply
    742,540.54x = 1,024,706.38 × 403,008.78
  4. Step 4: Simplify right side
    742,540.54x = 412,965,668,062.02
  5. Step 5: Solve for x
    x = 412,965,668,062.02/742,540.54
  6. Step 6: Final answer
    x = 556,152.35

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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.