Home / 1,369,673.20-2,054,509.80-621,719.20

Finding the Fourth Proportional to 1,369,673.20, 2,054,509.80 and 621,719.20

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Solution

The fourth proportional to 1,369,673.20, 2,054,509.80 and 621,719.20 is: 932,578.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,673.20 : 2,054,509.80 = 621,719.20 : x
  2. Step 2: Convert to fraction form
    1,369,673.20/2,054,509.80 = 621,719.20/x
  3. Step 3: Cross multiply
    1,369,673.20x = 2,054,509.80 × 621,719.20
  4. Step 4: Simplify right side
    1,369,673.20x = 1,277,328,189,248.16
  5. Step 5: Solve for x
    x = 1,277,328,189,248.16/1,369,673.20
  6. Step 6: Final answer
    x = 932,578.80

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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.