Home / 1,478,809.20-2,218,213.80-980,173.20

Finding the Fourth Proportional to 1,478,809.20, 2,218,213.80 and 980,173.20

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Solution

The fourth proportional to 1,478,809.20, 2,218,213.80 and 980,173.20 is: 1,470,259.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,809.20 : 2,218,213.80 = 980,173.20 : x
  2. Step 2: Convert to fraction form
    1,478,809.20/2,218,213.80 = 980,173.20/x
  3. Step 3: Cross multiply
    1,478,809.20x = 2,218,213.80 × 980,173.20
  4. Step 4: Simplify right side
    1,478,809.20x = 2,174,233,718,630.16
  5. Step 5: Solve for x
    x = 2,174,233,718,630.16/1,478,809.20
  6. Step 6: Final answer
    x = 1,470,259.80

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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.