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Finding the Fourth Proportional to 683,290.86, 942,948.43 and 377,374.86

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Solution

The fourth proportional to 683,290.86, 942,948.43 and 377,374.86 is: 520,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,290.86 : 942,948.43 = 377,374.86 : x
  2. Step 2: Convert to fraction form
    683,290.86/942,948.43 = 377,374.86/x
  3. Step 3: Cross multiply
    683,290.86x = 942,948.43 × 377,374.86
  4. Step 4: Simplify right side
    683,290.86x = 355,845,030,815.03
  5. Step 5: Solve for x
    x = 355,845,030,815.03/683,290.86
  6. Step 6: Final answer
    x = 520,781.20

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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.