Home / 805,970.20-1,207,205.70-666,002.20

Finding the Fourth Proportional to 805,970.20, 1,207,205.70 and 666,002.20

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Solution

The fourth proportional to 805,970.20, 1,207,205.70 and 666,002.20 is: 997,557.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,970.20 : 1,207,205.70 = 666,002.20 : x
  2. Step 2: Convert to fraction form
    805,970.20/1,207,205.70 = 666,002.20/x
  3. Step 3: Cross multiply
    805,970.20x = 1,207,205.70 × 666,002.20
  4. Step 4: Simplify right side
    805,970.20x = 804,001,652,052.54
  5. Step 5: Solve for x
    x = 804,001,652,052.54/805,970.20
  6. Step 6: Final answer
    x = 997,557.54

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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.