Home / 1,035,620.70-1,553,431.05-287,666.70

Finding the Fourth Proportional to 1,035,620.70, 1,553,431.05 and 287,666.70

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Solution

The fourth proportional to 1,035,620.70, 1,553,431.05 and 287,666.70 is: 431,500.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,035,620.70 : 1,553,431.05 = 287,666.70 : x
  2. Step 2: Convert to fraction form
    1,035,620.70/1,553,431.05 = 287,666.70/x
  3. Step 3: Cross multiply
    1,035,620.70x = 1,553,431.05 × 287,666.70
  4. Step 4: Simplify right side
    1,035,620.70x = 446,870,383,831.04
  5. Step 5: Solve for x
    x = 446,870,383,831.04/1,035,620.70
  6. Step 6: Final answer
    x = 431,500.05

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Double scale
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Similar ratio
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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.