Home / 637,622.28-879,929.73-351,139.86

Finding the Fourth Proportional to 637,622.28, 879,929.73 and 351,139.86

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Solution

The fourth proportional to 637,622.28, 879,929.73 and 351,139.86 is: 484,579.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,622.28 : 879,929.73 = 351,139.86 : x
  2. Step 2: Convert to fraction form
    637,622.28/879,929.73 = 351,139.86/x
  3. Step 3: Cross multiply
    637,622.28x = 879,929.73 × 351,139.86
  4. Step 4: Simplify right side
    637,622.28x = 308,978,402,202.04
  5. Step 5: Solve for x
    x = 308,978,402,202.04/637,622.28
  6. Step 6: Final answer
    x = 484,579.06

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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.