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Finding the Fourth Proportional to 424,720.85, 637,080.62 and 291,196.31

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Solution

The fourth proportional to 424,720.85, 637,080.62 and 291,196.31 is: 436,794.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,720.85 : 637,080.62 = 291,196.31 : x
  2. Step 2: Convert to fraction form
    424,720.85/637,080.62 = 291,196.31/x
  3. Step 3: Cross multiply
    424,720.85x = 637,080.62 × 291,196.31
  4. Step 4: Simplify right side
    424,720.85x = 185,515,521,075.13
  5. Step 5: Solve for x
    x = 185,515,521,075.13/424,720.85
  6. Step 6: Final answer
    x = 436,794.01

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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.