Home / 688,311.46-1,032,487.55-328,520.23

Finding the Fourth Proportional to 688,311.46, 1,032,487.55 and 328,520.23

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Solution

The fourth proportional to 688,311.46, 1,032,487.55 and 328,520.23 is: 492,790.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,311.46 : 1,032,487.55 = 328,520.23 : x
  2. Step 2: Convert to fraction form
    688,311.46/1,032,487.55 = 328,520.23/x
  3. Step 3: Cross multiply
    688,311.46x = 1,032,487.55 × 328,520.23
  4. Step 4: Simplify right side
    688,311.46x = 339,193,047,398.14
  5. Step 5: Solve for x
    x = 339,193,047,398.14/688,311.46
  6. Step 6: Final answer
    x = 492,790.06

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1.5x scale

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.