Home / 1,988,897.20-2,983,345.80-869,153.20

Finding the Fourth Proportional to 1,988,897.20, 2,983,345.80 and 869,153.20

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Solution

The fourth proportional to 1,988,897.20, 2,983,345.80 and 869,153.20 is: 1,303,729.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,897.20 : 2,983,345.80 = 869,153.20 : x
  2. Step 2: Convert to fraction form
    1,988,897.20/2,983,345.80 = 869,153.20/x
  3. Step 3: Cross multiply
    1,988,897.20x = 2,983,345.80 × 869,153.20
  4. Step 4: Simplify right side
    1,988,897.20x = 2,592,984,548,776.56
  5. Step 5: Solve for x
    x = 2,592,984,548,776.56/1,988,897.20
  6. Step 6: Final answer
    x = 1,303,729.80

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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.