Home / 621,318.12-930,482.48-354,269.04

Finding the Fourth Proportional to 621,318.12, 930,482.48 and 354,269.04

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Solution

The fourth proportional to 621,318.12, 930,482.48 and 354,269.04 is: 530,551.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,318.12 : 930,482.48 = 354,269.04 : x
  2. Step 2: Convert to fraction form
    621,318.12/930,482.48 = 354,269.04/x
  3. Step 3: Cross multiply
    621,318.12x = 930,482.48 × 354,269.04
  4. Step 4: Simplify right side
    621,318.12x = 329,641,134,926.42
  5. Step 5: Solve for x
    x = 329,641,134,926.42/621,318.12
  6. Step 6: Final answer
    x = 530,551.30

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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.