Home / 1,666,731.90-2,497,145.40-1,412,821.20

Finding the Fourth Proportional to 1,666,731.90, 2,497,145.40 and 1,412,821.20

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Solution

The fourth proportional to 1,666,731.90, 2,497,145.40 and 1,412,821.20 is: 2,116,729.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,666,731.90 : 2,497,145.40 = 1,412,821.20 : x
  2. Step 2: Convert to fraction form
    1,666,731.90/2,497,145.40 = 1,412,821.20/x
  3. Step 3: Cross multiply
    1,666,731.90x = 2,497,145.40 × 1,412,821.20
  4. Step 4: Simplify right side
    1,666,731.90x = 3,528,019,960,602.48
  5. Step 5: Solve for x
    x = 3,528,019,960,602.48/1,666,731.90
  6. Step 6: Final answer
    x = 2,116,729.13

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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.