Home / 1,387,133.80-2,080,700.70-1,013,885.80

Finding the Fourth Proportional to 1,387,133.80, 2,080,700.70 and 1,013,885.80

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Solution

The fourth proportional to 1,387,133.80, 2,080,700.70 and 1,013,885.80 is: 1,520,828.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,133.80 : 2,080,700.70 = 1,013,885.80 : x
  2. Step 2: Convert to fraction form
    1,387,133.80/2,080,700.70 = 1,013,885.80/x
  3. Step 3: Cross multiply
    1,387,133.80x = 2,080,700.70 × 1,013,885.80
  4. Step 4: Simplify right side
    1,387,133.80x = 2,109,592,893,780.06
  5. Step 5: Solve for x
    x = 2,109,592,893,780.06/1,387,133.80
  6. Step 6: Final answer
    x = 1,520,828.70

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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.