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Finding the Fourth Proportional to 507,898.71, 700,658.70 and 303,908.55

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Solution

The fourth proportional to 507,898.71, 700,658.70 and 303,908.55 is: 419,249.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,898.71 : 700,658.70 = 303,908.55 : x
  2. Step 2: Convert to fraction form
    507,898.71/700,658.70 = 303,908.55/x
  3. Step 3: Cross multiply
    507,898.71x = 700,658.70 × 303,908.55
  4. Step 4: Simplify right side
    507,898.71x = 212,936,169,561.89
  5. Step 5: Solve for x
    x = 212,936,169,561.89/507,898.71
  6. Step 6: Final answer
    x = 419,249.28

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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.