Home / 859,628.70-1,289,443.05-268,652.70

Finding the Fourth Proportional to 859,628.70, 1,289,443.05 and 268,652.70

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Solution

The fourth proportional to 859,628.70, 1,289,443.05 and 268,652.70 is: 402,979.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,628.70 : 1,289,443.05 = 268,652.70 : x
  2. Step 2: Convert to fraction form
    859,628.70/1,289,443.05 = 268,652.70/x
  3. Step 3: Cross multiply
    859,628.70x = 1,289,443.05 × 268,652.70
  4. Step 4: Simplify right side
    859,628.70x = 346,412,356,878.74
  5. Step 5: Solve for x
    x = 346,412,356,878.74/859,628.70
  6. Step 6: Final answer
    x = 402,979.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.