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Finding the Fourth Proportional to 668,957.64, 922,775.52 and 426,967.50

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Solution

The fourth proportional to 668,957.64, 922,775.52 and 426,967.50 is: 588,968.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,957.64 : 922,775.52 = 426,967.50 : x
  2. Step 2: Convert to fraction form
    668,957.64/922,775.52 = 426,967.50/x
  3. Step 3: Cross multiply
    668,957.64x = 922,775.52 × 426,967.50
  4. Step 4: Simplify right side
    668,957.64x = 393,995,156,835.60
  5. Step 5: Solve for x
    x = 393,995,156,835.60/668,957.64
  6. Step 6: Final answer
    x = 588,968.77

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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.