Home / 1,020,253.05-1,530,379.58-310,279.95

Finding the Fourth Proportional to 1,020,253.05, 1,530,379.58 and 310,279.95

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Solution

The fourth proportional to 1,020,253.05, 1,530,379.58 and 310,279.95 is: 465,419.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,253.05 : 1,530,379.58 = 310,279.95 : x
  2. Step 2: Convert to fraction form
    1,020,253.05/1,530,379.58 = 310,279.95/x
  3. Step 3: Cross multiply
    1,020,253.05x = 1,530,379.58 × 310,279.95
  4. Step 4: Simplify right side
    1,020,253.05x = 474,846,098,012.02
  5. Step 5: Solve for x
    x = 474,846,098,012.02/1,020,253.05
  6. Step 6: Final answer
    x = 465,419.93

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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.