Home / 755,486.70-1,133,230.05-666,913.20

Finding the Fourth Proportional to 755,486.70, 1,133,230.05 and 666,913.20

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Solution

The fourth proportional to 755,486.70, 1,133,230.05 and 666,913.20 is: 1,000,369.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,486.70 : 1,133,230.05 = 666,913.20 : x
  2. Step 2: Convert to fraction form
    755,486.70/1,133,230.05 = 666,913.20/x
  3. Step 3: Cross multiply
    755,486.70x = 1,133,230.05 × 666,913.20
  4. Step 4: Simplify right side
    755,486.70x = 755,766,078,981.66
  5. Step 5: Solve for x
    x = 755,766,078,981.66/755,486.70
  6. Step 6: Final answer
    x = 1,000,369.80

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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.