Home / 636,827.04-878,789.55-350,339.76

Finding the Fourth Proportional to 636,827.04, 878,789.55 and 350,339.76

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Solution

The fourth proportional to 636,827.04, 878,789.55 and 350,339.76 is: 483,451.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,827.04 : 878,789.55 = 350,339.76 : x
  2. Step 2: Convert to fraction form
    636,827.04/878,789.55 = 350,339.76/x
  3. Step 3: Cross multiply
    636,827.04x = 878,789.55 × 350,339.76
  4. Step 4: Simplify right side
    636,827.04x = 307,874,920,037.51
  5. Step 5: Solve for x
    x = 307,874,920,037.51/636,827.04
  6. Step 6: Final answer
    x = 483,451.39

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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.