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Finding the Fourth Proportional to 557,535.96, 769,399.02 and 302,885.46

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Solution

The fourth proportional to 557,535.96, 769,399.02 and 302,885.46 is: 417,981.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,535.96 : 769,399.02 = 302,885.46 : x
  2. Step 2: Convert to fraction form
    557,535.96/769,399.02 = 302,885.46/x
  3. Step 3: Cross multiply
    557,535.96x = 769,399.02 × 302,885.46
  4. Step 4: Simplify right side
    557,535.96x = 233,039,776,096.25
  5. Step 5: Solve for x
    x = 233,039,776,096.25/557,535.96
  6. Step 6: Final answer
    x = 417,981.61

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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.