Home / 1,660,287.80-2,490,431.70-818,730.20

Finding the Fourth Proportional to 1,660,287.80, 2,490,431.70 and 818,730.20

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Solution

The fourth proportional to 1,660,287.80, 2,490,431.70 and 818,730.20 is: 1,228,095.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660,287.80 : 2,490,431.70 = 818,730.20 : x
  2. Step 2: Convert to fraction form
    1,660,287.80/2,490,431.70 = 818,730.20/x
  3. Step 3: Cross multiply
    1,660,287.80x = 2,490,431.70 × 818,730.20
  4. Step 4: Simplify right side
    1,660,287.80x = 2,038,991,643,827.34
  5. Step 5: Solve for x
    x = 2,038,991,643,827.34/1,660,287.80
  6. Step 6: Final answer
    x = 1,228,095.30

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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.