Home / 1,209,960.78-1,816,061.40-611,343.24

Finding the Fourth Proportional to 1,209,960.78, 1,816,061.40 and 611,343.24

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Solution

The fourth proportional to 1,209,960.78, 1,816,061.40 and 611,343.24 is: 917,580.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,960.78 : 1,816,061.40 = 611,343.24 : x
  2. Step 2: Convert to fraction form
    1,209,960.78/1,816,061.40 = 611,343.24/x
  3. Step 3: Cross multiply
    1,209,960.78x = 1,816,061.40 × 611,343.24
  4. Step 4: Simplify right side
    1,209,960.78x = 1,110,236,860,314.94
  5. Step 5: Solve for x
    x = 1,110,236,860,314.94/1,209,960.78
  6. Step 6: Final answer
    x = 917,580.87

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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.