Home / 858,678.04-1,288,607.60-297,712.56

Finding the Fourth Proportional to 858,678.04, 1,288,607.60 and 297,712.56

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Solution

The fourth proportional to 858,678.04, 1,288,607.60 and 297,712.56 is: 446,773.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,678.04 : 1,288,607.60 = 297,712.56 : x
  2. Step 2: Convert to fraction form
    858,678.04/1,288,607.60 = 297,712.56/x
  3. Step 3: Cross multiply
    858,678.04x = 1,288,607.60 × 297,712.56
  4. Step 4: Simplify right side
    858,678.04x = 383,634,667,431.46
  5. Step 5: Solve for x
    x = 383,634,667,431.46/858,678.04
  6. Step 6: Final answer
    x = 446,773.59

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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.