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Finding the Fourth Proportional to 507,700.86, 700,603.08 and 303,864.06

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Solution

The fourth proportional to 507,700.86, 700,603.08 and 303,864.06 is: 419,317.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,700.86 : 700,603.08 = 303,864.06 : x
  2. Step 2: Convert to fraction form
    507,700.86/700,603.08 = 303,864.06/x
  3. Step 3: Cross multiply
    507,700.86x = 700,603.08 × 303,864.06
  4. Step 4: Simplify right side
    507,700.86x = 212,888,096,337.31
  5. Step 5: Solve for x
    x = 212,888,096,337.31/507,700.86
  6. Step 6: Final answer
    x = 419,317.97

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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.