Home / 1,392,259.08-2,088,390.20-381,389.70

Finding the Fourth Proportional to 1,392,259.08, 2,088,390.20 and 381,389.70

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Solution

The fourth proportional to 1,392,259.08, 2,088,390.20 and 381,389.70 is: 572,084.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,259.08 : 2,088,390.20 = 381,389.70 : x
  2. Step 2: Convert to fraction form
    1,392,259.08/2,088,390.20 = 381,389.70/x
  3. Step 3: Cross multiply
    1,392,259.08x = 2,088,390.20 × 381,389.70
  4. Step 4: Simplify right side
    1,392,259.08x = 796,490,509,953.99
  5. Step 5: Solve for x
    x = 796,490,509,953.99/1,392,259.08
  6. Step 6: Final answer
    x = 572,084.98

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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.