Home / 1,389,416.40-2,084,124.60-547,858.80

Finding the Fourth Proportional to 1,389,416.40, 2,084,124.60 and 547,858.80

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Solution

The fourth proportional to 1,389,416.40, 2,084,124.60 and 547,858.80 is: 821,788.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,416.40 : 2,084,124.60 = 547,858.80 : x
  2. Step 2: Convert to fraction form
    1,389,416.40/2,084,124.60 = 547,858.80/x
  3. Step 3: Cross multiply
    1,389,416.40x = 2,084,124.60 × 547,858.80
  4. Step 4: Simplify right side
    1,389,416.40x = 1,141,806,002,406.48
  5. Step 5: Solve for x
    x = 1,141,806,002,406.48/1,389,416.40
  6. Step 6: Final answer
    x = 821,788.20

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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.