Home / 851,038.93-1,276,590.80-318,503.89

Finding the Fourth Proportional to 851,038.93, 1,276,590.80 and 318,503.89

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Solution

The fourth proportional to 851,038.93, 1,276,590.80 and 318,503.89 is: 477,767.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,038.93 : 1,276,590.80 = 318,503.89 : x
  2. Step 2: Convert to fraction form
    851,038.93/1,276,590.80 = 318,503.89/x
  3. Step 3: Cross multiply
    851,038.93x = 1,276,590.80 × 318,503.89
  4. Step 4: Simplify right side
    851,038.93x = 406,599,134,145.69
  5. Step 5: Solve for x
    x = 406,599,134,145.69/851,038.93
  6. Step 6: Final answer
    x = 477,767.96

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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.