Home / 478,123.67-659,815.05-263,271.42

Finding the Fourth Proportional to 478,123.67, 659,815.05 and 263,271.42

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Solution

The fourth proportional to 478,123.67, 659,815.05 and 263,271.42 is: 363,316.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,123.67 : 659,815.05 = 263,271.42 : x
  2. Step 2: Convert to fraction form
    478,123.67/659,815.05 = 263,271.42/x
  3. Step 3: Cross multiply
    478,123.67x = 659,815.05 × 263,271.42
  4. Step 4: Simplify right side
    478,123.67x = 173,710,447,625.18
  5. Step 5: Solve for x
    x = 173,710,447,625.18/478,123.67
  6. Step 6: Final answer
    x = 363,316.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.