Home / 680,846.74-1,021,416.91-339,476.30

Finding the Fourth Proportional to 680,846.74, 1,021,416.91 and 339,476.30

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Solution

The fourth proportional to 680,846.74, 1,021,416.91 and 339,476.30 is: 509,287.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,846.74 : 1,021,416.91 = 339,476.30 : x
  2. Step 2: Convert to fraction form
    680,846.74/1,021,416.91 = 339,476.30/x
  3. Step 3: Cross multiply
    680,846.74x = 1,021,416.91 × 339,476.30
  4. Step 4: Simplify right side
    680,846.74x = 346,746,833,364.23
  5. Step 5: Solve for x
    x = 346,746,833,364.23/680,846.74
  6. Step 6: Final answer
    x = 509,287.65

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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.