Home / 637,621.34-879,913.13-351,139.32

Finding the Fourth Proportional to 637,621.34, 879,913.13 and 351,139.32

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Solution

The fourth proportional to 637,621.34, 879,913.13 and 351,139.32 is: 484,569.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,621.34 : 879,913.13 = 351,139.32 : x
  2. Step 2: Convert to fraction form
    637,621.34/879,913.13 = 351,139.32/x
  3. Step 3: Cross multiply
    637,621.34x = 879,913.13 × 351,139.32
  4. Step 4: Simplify right side
    637,621.34x = 308,972,096,371.58
  5. Step 5: Solve for x
    x = 308,972,096,371.58/637,621.34
  6. Step 6: Final answer
    x = 484,569.88

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1.5x scale

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.