Home / 767,969.69-1,152,468.74-318,691.01

Finding the Fourth Proportional to 767,969.69, 1,152,468.74 and 318,691.01

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Solution

The fourth proportional to 767,969.69, 1,152,468.74 and 318,691.01 is: 478,249.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,969.69 : 1,152,468.74 = 318,691.01 : x
  2. Step 2: Convert to fraction form
    767,969.69/1,152,468.74 = 318,691.01/x
  3. Step 3: Cross multiply
    767,969.69x = 1,152,468.74 × 318,691.01
  4. Step 4: Simplify right side
    767,969.69x = 367,281,430,421.93
  5. Step 5: Solve for x
    x = 367,281,430,421.93/767,969.69
  6. Step 6: Final answer
    x = 478,249.91

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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.