Home / 811,056.20-1,217,813.10-624,278.60

Finding the Fourth Proportional to 811,056.20, 1,217,813.10 and 624,278.60

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Solution

The fourth proportional to 811,056.20, 1,217,813.10 and 624,278.60 is: 937,363.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,056.20 : 1,217,813.10 = 624,278.60 : x
  2. Step 2: Convert to fraction form
    811,056.20/1,217,813.10 = 624,278.60/x
  3. Step 3: Cross multiply
    811,056.20x = 1,217,813.10 × 624,278.60
  4. Step 4: Simplify right side
    811,056.20x = 760,254,657,129.66
  5. Step 5: Solve for x
    x = 760,254,657,129.66/811,056.20
  6. Step 6: Final answer
    x = 937,363.72

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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.