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Finding the Fourth Proportional to 570,603.84, 787,433.16 and 315,954.96

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Solution

The fourth proportional to 570,603.84, 787,433.16 and 315,954.96 is: 436,017.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,603.84 : 787,433.16 = 315,954.96 : x
  2. Step 2: Convert to fraction form
    570,603.84/787,433.16 = 315,954.96/x
  3. Step 3: Cross multiply
    570,603.84x = 787,433.16 × 315,954.96
  4. Step 4: Simplify right side
    570,603.84x = 248,793,412,570.47
  5. Step 5: Solve for x
    x = 248,793,412,570.47/570,603.84
  6. Step 6: Final answer
    x = 436,017.77

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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.