Home / 742,556.60-1,113,616.20-293,128.10

Finding the Fourth Proportional to 742,556.60, 1,113,616.20 and 293,128.10

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Solution

The fourth proportional to 742,556.60, 1,113,616.20 and 293,128.10 is: 439,605.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,556.60 : 1,113,616.20 = 293,128.10 : x
  2. Step 2: Convert to fraction form
    742,556.60/1,113,616.20 = 293,128.10/x
  3. Step 3: Cross multiply
    742,556.60x = 1,113,616.20 × 293,128.10
  4. Step 4: Simplify right side
    742,556.60x = 326,432,200,835.22
  5. Step 5: Solve for x
    x = 326,432,200,835.22/742,556.60
  6. Step 6: Final answer
    x = 439,605.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.