Home / 1,389,374.40-2,084,061.60-547,816.80

Finding the Fourth Proportional to 1,389,374.40, 2,084,061.60 and 547,816.80

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Solution

The fourth proportional to 1,389,374.40, 2,084,061.60 and 547,816.80 is: 821,725.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,374.40 : 2,084,061.60 = 547,816.80 : x
  2. Step 2: Convert to fraction form
    1,389,374.40/2,084,061.60 = 547,816.80/x
  3. Step 3: Cross multiply
    1,389,374.40x = 2,084,061.60 × 547,816.80
  4. Step 4: Simplify right side
    1,389,374.40x = 1,141,683,956,714.88
  5. Step 5: Solve for x
    x = 1,141,683,956,714.88/1,389,374.40
  6. Step 6: Final answer
    x = 821,725.20

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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.