Home / 780,210.78-1,169,983.84-306,563.88

Finding the Fourth Proportional to 780,210.78, 1,169,983.84 and 306,563.88

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Solution

The fourth proportional to 780,210.78, 1,169,983.84 and 306,563.88 is: 459,715.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,210.78 : 1,169,983.84 = 306,563.88 : x
  2. Step 2: Convert to fraction form
    780,210.78/1,169,983.84 = 306,563.88/x
  3. Step 3: Cross multiply
    780,210.78x = 1,169,983.84 × 306,563.88
  4. Step 4: Simplify right side
    780,210.78x = 358,674,785,527.70
  5. Step 5: Solve for x
    x = 358,674,785,527.70/780,210.78
  6. Step 6: Final answer
    x = 459,715.24

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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.