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Finding the Fourth Proportional to 865,775.96, 1,194,768.90 and 483,802.77

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Solution

The fourth proportional to 865,775.96, 1,194,768.90 and 483,802.77 is: 667,646.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,775.96 : 1,194,768.90 = 483,802.77 : x
  2. Step 2: Convert to fraction form
    865,775.96/1,194,768.90 = 483,802.77/x
  3. Step 3: Cross multiply
    865,775.96x = 1,194,768.90 × 483,802.77
  4. Step 4: Simplify right side
    865,775.96x = 578,032,503,329.85
  5. Step 5: Solve for x
    x = 578,032,503,329.85/865,775.96
  6. Step 6: Final answer
    x = 667,646.75

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1.5x scale

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.