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Finding the Fourth Proportional to 557,679.19, 769,602.15 and 303,030.37

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Solution

The fourth proportional to 557,679.19, 769,602.15 and 303,030.37 is: 418,184.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,679.19 : 769,602.15 = 303,030.37 : x
  2. Step 2: Convert to fraction form
    557,679.19/769,602.15 = 303,030.37/x
  3. Step 3: Cross multiply
    557,679.19x = 769,602.15 × 303,030.37
  4. Step 4: Simplify right side
    557,679.19x = 233,212,824,267.30
  5. Step 5: Solve for x
    x = 233,212,824,267.30/557,679.19
  6. Step 6: Final answer
    x = 418,184.56

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Double scale
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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.