Home / 925,811.80-1,385,607.30-645,875.80

Finding the Fourth Proportional to 925,811.80, 1,385,607.30 and 645,875.80

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Solution

The fourth proportional to 925,811.80, 1,385,607.30 and 645,875.80 is: 966,643.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,811.80 : 1,385,607.30 = 645,875.80 : x
  2. Step 2: Convert to fraction form
    925,811.80/1,385,607.30 = 645,875.80/x
  3. Step 3: Cross multiply
    925,811.80x = 1,385,607.30 × 645,875.80
  4. Step 4: Simplify right side
    925,811.80x = 894,930,223,373.34
  5. Step 5: Solve for x
    x = 894,930,223,373.34/925,811.80
  6. Step 6: Final answer
    x = 966,643.79

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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.