Home / 557,785.22-769,749.54-303,136.40

Finding the Fourth Proportional to 557,785.22, 769,749.54 and 303,136.40

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Solution

The fourth proportional to 557,785.22, 769,749.54 and 303,136.40 is: 418,331.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,785.22 : 769,749.54 = 303,136.40 : x
  2. Step 2: Convert to fraction form
    557,785.22/769,749.54 = 303,136.40/x
  3. Step 3: Cross multiply
    557,785.22x = 769,749.54 × 303,136.40
  4. Step 4: Simplify right side
    557,785.22x = 233,339,104,457.26
  5. Step 5: Solve for x
    x = 233,339,104,457.26/557,785.22
  6. Step 6: Final answer
    x = 418,331.46

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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.