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Finding the Fourth Proportional to 623,682.18, 860,902.56 and 369,032.76

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Solution

The fourth proportional to 623,682.18, 860,902.56 and 369,032.76 is: 509,396.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,682.18 : 860,902.56 = 369,032.76 : x
  2. Step 2: Convert to fraction form
    623,682.18/860,902.56 = 369,032.76/x
  3. Step 3: Cross multiply
    623,682.18x = 860,902.56 × 369,032.76
  4. Step 4: Simplify right side
    623,682.18x = 317,701,247,807.87
  5. Step 5: Solve for x
    x = 317,701,247,807.87/623,682.18
  6. Step 6: Final answer
    x = 509,396.06

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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.