Home / 1,243,405.77-1,865,108.53-344,847.49

Finding the Fourth Proportional to 1,243,405.77, 1,865,108.53 and 344,847.49

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Solution

The fourth proportional to 1,243,405.77, 1,865,108.53 and 344,847.49 is: 517,271.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,405.77 : 1,865,108.53 = 344,847.49 : x
  2. Step 2: Convert to fraction form
    1,243,405.77/1,865,108.53 = 344,847.49/x
  3. Step 3: Cross multiply
    1,243,405.77x = 1,865,108.53 × 344,847.49
  4. Step 4: Simplify right side
    1,243,405.77x = 643,177,990,916.38
  5. Step 5: Solve for x
    x = 643,177,990,916.38/1,243,405.77
  6. Step 6: Final answer
    x = 517,271.20

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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.