Home / 958,816.10-1,438,742.55-426,419.30

Finding the Fourth Proportional to 958,816.10, 1,438,742.55 and 426,419.30

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Solution

The fourth proportional to 958,816.10, 1,438,742.55 and 426,419.30 is: 639,859.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    958,816.10 : 1,438,742.55 = 426,419.30 : x
  2. Step 2: Convert to fraction form
    958,816.10/1,438,742.55 = 426,419.30/x
  3. Step 3: Cross multiply
    958,816.10x = 1,438,742.55 × 426,419.30
  4. Step 4: Simplify right side
    958,816.10x = 613,507,591,051.22
  5. Step 5: Solve for x
    x = 613,507,591,051.22/958,816.10
  6. Step 6: Final answer
    x = 639,859.50

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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.