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Finding the Fourth Proportional to 561,689.40, 844,283.70 and 551,191.80

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Solution

The fourth proportional to 561,689.40, 844,283.70 and 551,191.80 is: 828,504.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,689.40 : 844,283.70 = 551,191.80 : x
  2. Step 2: Convert to fraction form
    561,689.40/844,283.70 = 551,191.80/x
  3. Step 3: Cross multiply
    561,689.40x = 844,283.70 × 551,191.80
  4. Step 4: Simplify right side
    561,689.40x = 465,362,252,313.66
  5. Step 5: Solve for x
    x = 465,362,252,313.66/561,689.40
  6. Step 6: Final answer
    x = 828,504.60

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1.5x scale

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.