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Finding the Fourth Proportional to 520,052.10, 778,522.95 and 489,293.70

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Solution

The fourth proportional to 520,052.10, 778,522.95 and 489,293.70 is: 732,477.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,052.10 : 778,522.95 = 489,293.70 : x
  2. Step 2: Convert to fraction form
    520,052.10/778,522.95 = 489,293.70/x
  3. Step 3: Cross multiply
    520,052.10x = 778,522.95 × 489,293.70
  4. Step 4: Simplify right side
    520,052.10x = 380,926,374,740.42
  5. Step 5: Solve for x
    x = 380,926,374,740.42/520,052.10
  6. Step 6: Final answer
    x = 732,477.33

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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.