Home / 784,575.73-1,079,316.88-687,341.71

Finding the Fourth Proportional to 784,575.73, 1,079,316.88 and 687,341.71

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Solution

The fourth proportional to 784,575.73, 1,079,316.88 and 687,341.71 is: 945,555.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,575.73 : 1,079,316.88 = 687,341.71 : x
  2. Step 2: Convert to fraction form
    784,575.73/1,079,316.88 = 687,341.71/x
  3. Step 3: Cross multiply
    784,575.73x = 1,079,316.88 × 687,341.71
  4. Step 4: Simplify right side
    784,575.73x = 741,859,509,931.07
  5. Step 5: Solve for x
    x = 741,859,509,931.07/784,575.73
  6. Step 6: Final answer
    x = 945,555.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.