Home / 678,082.80-1,017,124.19-528,435.05

Finding the Fourth Proportional to 678,082.80, 1,017,124.19 and 528,435.05

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Solution

The fourth proportional to 678,082.80, 1,017,124.19 and 528,435.05 is: 792,652.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,082.80 : 1,017,124.19 = 528,435.05 : x
  2. Step 2: Convert to fraction form
    678,082.80/1,017,124.19 = 528,435.05/x
  3. Step 3: Cross multiply
    678,082.80x = 1,017,124.19 × 528,435.05
  4. Step 4: Simplify right side
    678,082.80x = 537,484,072,198.86
  5. Step 5: Solve for x
    x = 537,484,072,198.86/678,082.80
  6. Step 6: Final answer
    x = 792,652.57

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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.