Home / 636,979.11-879,037.32-350,505.35

Finding the Fourth Proportional to 636,979.11, 879,037.32 and 350,505.35

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Solution

The fourth proportional to 636,979.11, 879,037.32 and 350,505.35 is: 483,700.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,979.11 : 879,037.32 = 350,505.35 : x
  2. Step 2: Convert to fraction form
    636,979.11/879,037.32 = 350,505.35/x
  3. Step 3: Cross multiply
    636,979.11x = 879,037.32 × 350,505.35
  4. Step 4: Simplify right side
    636,979.11x = 308,107,283,509.66
  5. Step 5: Solve for x
    x = 308,107,283,509.66/636,979.11
  6. Step 6: Final answer
    x = 483,700.77

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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.