Home / 740,012.30-1,109,823.96-319,194.62

Finding the Fourth Proportional to 740,012.30, 1,109,823.96 and 319,194.62

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Solution

The fourth proportional to 740,012.30, 1,109,823.96 and 319,194.62 is: 478,708.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,012.30 : 1,109,823.96 = 319,194.62 : x
  2. Step 2: Convert to fraction form
    740,012.30/1,109,823.96 = 319,194.62/x
  3. Step 3: Cross multiply
    740,012.30x = 1,109,823.96 × 319,194.62
  4. Step 4: Simplify right side
    740,012.30x = 354,249,837,179.10
  5. Step 5: Solve for x
    x = 354,249,837,179.10/740,012.30
  6. Step 6: Final answer
    x = 478,708.04

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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.