Home / 857,710.30-1,286,565.45-842,964.70

Finding the Fourth Proportional to 857,710.30, 1,286,565.45 and 842,964.70

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Solution

The fourth proportional to 857,710.30, 1,286,565.45 and 842,964.70 is: 1,264,447.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,710.30 : 1,286,565.45 = 842,964.70 : x
  2. Step 2: Convert to fraction form
    857,710.30/1,286,565.45 = 842,964.70/x
  3. Step 3: Cross multiply
    857,710.30x = 1,286,565.45 × 842,964.70
  4. Step 4: Simplify right side
    857,710.30x = 1,084,529,258,589.61
  5. Step 5: Solve for x
    x = 1,084,529,258,589.61/857,710.30
  6. Step 6: Final answer
    x = 1,264,447.05

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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.