Home / 816,747.72-1,224,321.89-457,094.21

Finding the Fourth Proportional to 816,747.72, 1,224,321.89 and 457,094.21

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Solution

The fourth proportional to 816,747.72, 1,224,321.89 and 457,094.21 is: 685,193.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,747.72 : 1,224,321.89 = 457,094.21 : x
  2. Step 2: Convert to fraction form
    816,747.72/1,224,321.89 = 457,094.21/x
  3. Step 3: Cross multiply
    816,747.72x = 1,224,321.89 × 457,094.21
  4. Step 4: Simplify right side
    816,747.72x = 559,630,447,095.26
  5. Step 5: Solve for x
    x = 559,630,447,095.26/816,747.72
  6. Step 6: Final answer
    x = 685,193.77

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1.5x scale

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.