Home / 1,438,320.34-1,984,929.71-784,982.04

Finding the Fourth Proportional to 1,438,320.34, 1,984,929.71 and 784,982.04

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Solution

The fourth proportional to 1,438,320.34, 1,984,929.71 and 784,982.04 is: 1,083,301.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,320.34 : 1,984,929.71 = 784,982.04 : x
  2. Step 2: Convert to fraction form
    1,438,320.34/1,984,929.71 = 784,982.04/x
  3. Step 3: Cross multiply
    1,438,320.34x = 1,984,929.71 × 784,982.04
  4. Step 4: Simplify right side
    1,438,320.34x = 1,558,134,161,644.01
  5. Step 5: Solve for x
    x = 1,558,134,161,644.01/1,438,320.34
  6. Step 6: Final answer
    x = 1,083,301.21

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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.