Home / 1,390,273.20-2,085,409.80-491,707.80

Finding the Fourth Proportional to 1,390,273.20, 2,085,409.80 and 491,707.80

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Solution

The fourth proportional to 1,390,273.20, 2,085,409.80 and 491,707.80 is: 737,561.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,273.20 : 2,085,409.80 = 491,707.80 : x
  2. Step 2: Convert to fraction form
    1,390,273.20/2,085,409.80 = 491,707.80/x
  3. Step 3: Cross multiply
    1,390,273.20x = 2,085,409.80 × 491,707.80
  4. Step 4: Simplify right side
    1,390,273.20x = 1,025,412,264,856.44
  5. Step 5: Solve for x
    x = 1,025,412,264,856.44/1,390,273.20
  6. Step 6: Final answer
    x = 737,561.70

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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.