Home / 1,386,030.16-2,079,118.68-388,835.92

Finding the Fourth Proportional to 1,386,030.16, 2,079,118.68 and 388,835.92

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Solution

The fourth proportional to 1,386,030.16, 2,079,118.68 and 388,835.92 is: 583,274.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,030.16 : 2,079,118.68 = 388,835.92 : x
  2. Step 2: Convert to fraction form
    1,386,030.16/2,079,118.68 = 388,835.92/x
  3. Step 3: Cross multiply
    1,386,030.16x = 2,079,118.68 × 388,835.92
  4. Step 4: Simplify right side
    1,386,030.16x = 808,436,024,726.99
  5. Step 5: Solve for x
    x = 808,436,024,726.99/1,386,030.16
  6. Step 6: Final answer
    x = 583,274.48

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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.