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Finding the Fourth Proportional to 623,701.28, 860,929.08 and 369,051.92

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Solution

The fourth proportional to 623,701.28, 860,929.08 and 369,051.92 is: 509,422.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,701.28 : 860,929.08 = 369,051.92 : x
  2. Step 2: Convert to fraction form
    623,701.28/860,929.08 = 369,051.92/x
  3. Step 3: Cross multiply
    623,701.28x = 860,929.08 × 369,051.92
  4. Step 4: Simplify right side
    623,701.28x = 317,727,529,957.83
  5. Step 5: Solve for x
    x = 317,727,529,957.83/623,701.28
  6. Step 6: Final answer
    x = 509,422.60

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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.