Home / 807,686.40-1,211,529.60-471,107.10

Finding the Fourth Proportional to 807,686.40, 1,211,529.60 and 471,107.10

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Solution

The fourth proportional to 807,686.40, 1,211,529.60 and 471,107.10 is: 706,660.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,686.40 : 1,211,529.60 = 471,107.10 : x
  2. Step 2: Convert to fraction form
    807,686.40/1,211,529.60 = 471,107.10/x
  3. Step 3: Cross multiply
    807,686.40x = 1,211,529.60 × 471,107.10
  4. Step 4: Simplify right side
    807,686.40x = 570,760,196,420.16
  5. Step 5: Solve for x
    x = 570,760,196,420.16/807,686.40
  6. Step 6: Final answer
    x = 706,660.65

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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.