Home / 970,115.68-1,338,801.06-540,396.10

Finding the Fourth Proportional to 970,115.68, 1,338,801.06 and 540,396.10

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Solution

The fourth proportional to 970,115.68, 1,338,801.06 and 540,396.10 is: 745,769.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,115.68 : 1,338,801.06 = 540,396.10 : x
  2. Step 2: Convert to fraction form
    970,115.68/1,338,801.06 = 540,396.10/x
  3. Step 3: Cross multiply
    970,115.68x = 1,338,801.06 × 540,396.10
  4. Step 4: Simplify right side
    970,115.68x = 723,482,871,499.87
  5. Step 5: Solve for x
    x = 723,482,871,499.87/970,115.68
  6. Step 6: Final answer
    x = 745,769.69

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.