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Finding the Fourth Proportional to 623,440.74, 860,347.84 and 336,960.82

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Solution

The fourth proportional to 623,440.74, 860,347.84 and 336,960.82 is: 465,005.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,440.74 : 860,347.84 = 336,960.82 : x
  2. Step 2: Convert to fraction form
    623,440.74/860,347.84 = 336,960.82/x
  3. Step 3: Cross multiply
    623,440.74x = 860,347.84 × 336,960.82
  4. Step 4: Simplify right side
    623,440.74x = 289,903,516,761.42
  5. Step 5: Solve for x
    x = 289,903,516,761.42/623,440.74
  6. Step 6: Final answer
    x = 465,005.73

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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.