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Finding the Fourth Proportional to 520,460.38, 717,948.38 and 359,399.98

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Solution

The fourth proportional to 520,460.38, 717,948.38 and 359,399.98 is: 495,773.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,460.38 : 717,948.38 = 359,399.98 : x
  2. Step 2: Convert to fraction form
    520,460.38/717,948.38 = 359,399.98/x
  3. Step 3: Cross multiply
    520,460.38x = 717,948.38 × 359,399.98
  4. Step 4: Simplify right side
    520,460.38x = 258,030,633,413.03
  5. Step 5: Solve for x
    x = 258,030,633,413.03/520,460.38
  6. Step 6: Final answer
    x = 495,773.83

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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.