Home / 1,349,855.19-1,863,269.28-777,123.63

Finding the Fourth Proportional to 1,349,855.19, 1,863,269.28 and 777,123.63

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Solution

The fourth proportional to 1,349,855.19, 1,863,269.28 and 777,123.63 is: 1,072,700.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349,855.19 : 1,863,269.28 = 777,123.63 : x
  2. Step 2: Convert to fraction form
    1,349,855.19/1,863,269.28 = 777,123.63/x
  3. Step 3: Cross multiply
    1,349,855.19x = 1,863,269.28 × 777,123.63
  4. Step 4: Simplify right side
    1,349,855.19x = 1,447,990,586,541.09
  5. Step 5: Solve for x
    x = 1,447,990,586,541.09/1,349,855.19
  6. Step 6: Final answer
    x = 1,072,700.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.