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Finding the Fourth Proportional to 513,603.54, 770,569.35 and 247,390.98

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Solution

The fourth proportional to 513,603.54, 770,569.35 and 247,390.98 is: 371,165.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,603.54 : 770,569.35 = 247,390.98 : x
  2. Step 2: Convert to fraction form
    513,603.54/770,569.35 = 247,390.98/x
  3. Step 3: Cross multiply
    513,603.54x = 770,569.35 × 247,390.98
  4. Step 4: Simplify right side
    513,603.54x = 190,631,906,654.46
  5. Step 5: Solve for x
    x = 190,631,906,654.46/513,603.54
  6. Step 6: Final answer
    x = 371,165.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.