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Finding the Fourth Proportional to 1,791,715.71, 2,688,678 and 726,767.01

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Solution

The fourth proportional to 1,791,715.71, 2,688,678 and 726,767.01 is: 1,090,598.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791,715.71 : 2,688,678 = 726,767.01 : x
  2. Step 2: Convert to fraction form
    1,791,715.71/2,688,678 = 726,767.01/x
  3. Step 3: Cross multiply
    1,791,715.71x = 2,688,678 × 726,767.01
  4. Step 4: Simplify right side
    1,791,715.71x = 1,954,042,470,912.78
  5. Step 5: Solve for x
    x = 1,954,042,470,912.78/1,791,715.71
  6. Step 6: Final answer
    x = 1,090,598.50

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1.5x scale

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.