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Finding the Fourth Proportional to 611,761.20, 917,641.80 and 601,263.60

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Solution

The fourth proportional to 611,761.20, 917,641.80 and 601,263.60 is: 901,895.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,761.20 : 917,641.80 = 601,263.60 : x
  2. Step 2: Convert to fraction form
    611,761.20/917,641.80 = 601,263.60/x
  3. Step 3: Cross multiply
    611,761.20x = 917,641.80 × 601,263.60
  4. Step 4: Simplify right side
    611,761.20x = 551,744,612,178.48
  5. Step 5: Solve for x
    x = 551,744,612,178.48/611,761.20
  6. Step 6: Final answer
    x = 901,895.40

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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.