Home / 1,391,831.56-2,087,119.95-493,068.88

Finding the Fourth Proportional to 1,391,831.56, 2,087,119.95 and 493,068.88

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Solution

The fourth proportional to 1,391,831.56, 2,087,119.95 and 493,068.88 is: 739,381.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,831.56 : 2,087,119.95 = 493,068.88 : x
  2. Step 2: Convert to fraction form
    1,391,831.56/2,087,119.95 = 493,068.88/x
  3. Step 3: Cross multiply
    1,391,831.56x = 2,087,119.95 × 493,068.88
  4. Step 4: Simplify right side
    1,391,831.56x = 1,029,093,883,271.21
  5. Step 5: Solve for x
    x = 1,029,093,883,271.21/1,391,831.56
  6. Step 6: Final answer
    x = 739,381.05

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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.