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Finding the Fourth Proportional to 577,957.77, 866,994.98 and 218,038.32

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Solution

The fourth proportional to 577,957.77, 866,994.98 and 218,038.32 is: 327,079.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,957.77 : 866,994.98 = 218,038.32 : x
  2. Step 2: Convert to fraction form
    577,957.77/866,994.98 = 218,038.32/x
  3. Step 3: Cross multiply
    577,957.77x = 866,994.98 × 218,038.32
  4. Step 4: Simplify right side
    577,957.77x = 189,038,127,797.44
  5. Step 5: Solve for x
    x = 189,038,127,797.44/577,957.77
  6. Step 6: Final answer
    x = 327,079.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.