Home / 740,483.28-1,111,169.52-319,759.20

Finding the Fourth Proportional to 740,483.28, 1,111,169.52 and 319,759.20

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Solution

The fourth proportional to 740,483.28, 1,111,169.52 and 319,759.20 is: 479,830.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,483.28 : 1,111,169.52 = 319,759.20 : x
  2. Step 2: Convert to fraction form
    740,483.28/1,111,169.52 = 319,759.20/x
  3. Step 3: Cross multiply
    740,483.28x = 1,111,169.52 × 319,759.20
  4. Step 4: Simplify right side
    740,483.28x = 355,306,676,779.58
  5. Step 5: Solve for x
    x = 355,306,676,779.58/740,483.28
  6. Step 6: Final answer
    x = 479,830.79

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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.