Home / 756,109.40-1,134,164.10-401,815.40

Finding the Fourth Proportional to 756,109.40, 1,134,164.10 and 401,815.40

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Solution

The fourth proportional to 756,109.40, 1,134,164.10 and 401,815.40 is: 602,723.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,109.40 : 1,134,164.10 = 401,815.40 : x
  2. Step 2: Convert to fraction form
    756,109.40/1,134,164.10 = 401,815.40/x
  3. Step 3: Cross multiply
    756,109.40x = 1,134,164.10 × 401,815.40
  4. Step 4: Simplify right side
    756,109.40x = 455,724,601,507.14
  5. Step 5: Solve for x
    x = 455,724,601,507.14/756,109.40
  6. Step 6: Final answer
    x = 602,723.10

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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.