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Finding the Fourth Proportional to 623,385.36, 860,228.64 and 351,462.96

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Solution

The fourth proportional to 623,385.36, 860,228.64 and 351,462.96 is: 484,994.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,385.36 : 860,228.64 = 351,462.96 : x
  2. Step 2: Convert to fraction form
    623,385.36/860,228.64 = 351,462.96/x
  3. Step 3: Cross multiply
    623,385.36x = 860,228.64 × 351,462.96
  4. Step 4: Simplify right side
    623,385.36x = 302,338,504,091.17
  5. Step 5: Solve for x
    x = 302,338,504,091.17/623,385.36
  6. Step 6: Final answer
    x = 484,994.55

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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.