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Finding the Fourth Proportional to 303,945.70, 426,457.10 and 303,945.70

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Solution

The fourth proportional to 303,945.70, 426,457.10 and 303,945.70 is: 426,457.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,945.70 : 426,457.10 = 303,945.70 : x
  2. Step 2: Convert to fraction form
    303,945.70/426,457.10 = 303,945.70/x
  3. Step 3: Cross multiply
    303,945.70x = 426,457.10 × 303,945.70
  4. Step 4: Simplify right side
    303,945.70x = 129,619,801,779.47
  5. Step 5: Solve for x
    x = 129,619,801,779.47/303,945.70
  6. Step 6: Final answer
    x = 426,457.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.