Home / 738,986.69-1,019,272.61-480,381.23

Finding the Fourth Proportional to 738,986.69, 1,019,272.61 and 480,381.23

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Solution

The fourth proportional to 738,986.69, 1,019,272.61 and 480,381.23 is: 662,582.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,986.69 : 1,019,272.61 = 480,381.23 : x
  2. Step 2: Convert to fraction form
    738,986.69/1,019,272.61 = 480,381.23/x
  3. Step 3: Cross multiply
    738,986.69x = 1,019,272.61 × 480,381.23
  4. Step 4: Simplify right side
    738,986.69x = 489,639,433,846.25
  5. Step 5: Solve for x
    x = 489,639,433,846.25/738,986.69
  6. Step 6: Final answer
    x = 662,582.21

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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.