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Finding the Fourth Proportional to 455,779.91, 683,870.31 and 242,497.67

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Solution

The fourth proportional to 455,779.91, 683,870.31 and 242,497.67 is: 363,853.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,779.91 : 683,870.31 = 242,497.67 : x
  2. Step 2: Convert to fraction form
    455,779.91/683,870.31 = 242,497.67/x
  3. Step 3: Cross multiply
    455,779.91x = 683,870.31 × 242,497.67
  4. Step 4: Simplify right side
    455,779.91x = 165,836,953,337.83
  5. Step 5: Solve for x
    x = 165,836,953,337.83/455,779.91
  6. Step 6: Final answer
    x = 363,853.14

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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.