Home / 1,013,591.08-1,520,255.40-339,513.96

Finding the Fourth Proportional to 1,013,591.08, 1,520,255.40 and 339,513.96

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Solution

The fourth proportional to 1,013,591.08, 1,520,255.40 and 339,513.96 is: 509,226.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,591.08 : 1,520,255.40 = 339,513.96 : x
  2. Step 2: Convert to fraction form
    1,013,591.08/1,520,255.40 = 339,513.96/x
  3. Step 3: Cross multiply
    1,013,591.08x = 1,520,255.40 × 339,513.96
  4. Step 4: Simplify right side
    1,013,591.08x = 516,147,931,065.38
  5. Step 5: Solve for x
    x = 516,147,931,065.38/1,013,591.08
  6. Step 6: Final answer
    x = 509,226.99

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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.