Home / 678,746.85-1,016,742.46-528,368.73

Finding the Fourth Proportional to 678,746.85, 1,016,742.46 and 528,368.73

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Solution

The fourth proportional to 678,746.85, 1,016,742.46 and 528,368.73 is: 791,480.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,746.85 : 1,016,742.46 = 528,368.73 : x
  2. Step 2: Convert to fraction form
    678,746.85/1,016,742.46 = 528,368.73/x
  3. Step 3: Cross multiply
    678,746.85x = 1,016,742.46 × 528,368.73
  4. Step 4: Simplify right side
    678,746.85x = 537,214,914,601.72
  5. Step 5: Solve for x
    x = 537,214,914,601.72/678,746.85
  6. Step 6: Final answer
    x = 791,480.53

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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.