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Finding the Fourth Proportional to 623,216, 860,019.84 and 351,299.84

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Solution

The fourth proportional to 623,216, 860,019.84 and 351,299.84 is: 484,783.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,216 : 860,019.84 = 351,299.84 : x
  2. Step 2: Convert to fraction form
    623,216/860,019.84 = 351,299.84/x
  3. Step 3: Cross multiply
    623,216x = 860,019.84 × 351,299.84
  4. Step 4: Simplify right side
    623,216x = 302,124,832,188.83
  5. Step 5: Solve for x
    x = 302,124,832,188.83/623,216
  6. Step 6: Final answer
    x = 484,783.50

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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.