Home / 679,639.96-937,927.26-373,739.80

Finding the Fourth Proportional to 679,639.96, 937,927.26 and 373,739.80

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Solution

The fourth proportional to 679,639.96, 937,927.26 and 373,739.80 is: 515,774.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,639.96 : 937,927.26 = 373,739.80 : x
  2. Step 2: Convert to fraction form
    679,639.96/937,927.26 = 373,739.80/x
  3. Step 3: Cross multiply
    679,639.96x = 937,927.26 × 373,739.80
  4. Step 4: Simplify right side
    679,639.96x = 350,540,746,566.95
  5. Step 5: Solve for x
    x = 350,540,746,566.95/679,639.96
  6. Step 6: Final answer
    x = 515,774.19

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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.