Home / 1,340,705.70-2,011,058.55-442,286.10

Finding the Fourth Proportional to 1,340,705.70, 2,011,058.55 and 442,286.10

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Solution

The fourth proportional to 1,340,705.70, 2,011,058.55 and 442,286.10 is: 663,429.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,705.70 : 2,011,058.55 = 442,286.10 : x
  2. Step 2: Convert to fraction form
    1,340,705.70/2,011,058.55 = 442,286.10/x
  3. Step 3: Cross multiply
    1,340,705.70x = 2,011,058.55 × 442,286.10
  4. Step 4: Simplify right side
    1,340,705.70x = 889,463,242,951.16
  5. Step 5: Solve for x
    x = 889,463,242,951.16/1,340,705.70
  6. Step 6: Final answer
    x = 663,429.15

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Double scale
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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.