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Finding the Fourth Proportional to 557,981.16, 770,019.46 and 303,337.81

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Solution

The fourth proportional to 557,981.16, 770,019.46 and 303,337.81 is: 418,609.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,981.16 : 770,019.46 = 303,337.81 : x
  2. Step 2: Convert to fraction form
    557,981.16/770,019.46 = 303,337.81/x
  3. Step 3: Cross multiply
    557,981.16x = 770,019.46 × 303,337.81
  4. Step 4: Simplify right side
    557,981.16x = 233,576,018,564.24
  5. Step 5: Solve for x
    x = 233,576,018,564.24/557,981.16
  6. Step 6: Final answer
    x = 418,609.15

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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.