Home / 715,619.60-987,648.48-461,709.44

Finding the Fourth Proportional to 715,619.60, 987,648.48 and 461,709.44

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Solution

The fourth proportional to 715,619.60, 987,648.48 and 461,709.44 is: 637,219.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,619.60 : 987,648.48 = 461,709.44 : x
  2. Step 2: Convert to fraction form
    715,619.60/987,648.48 = 461,709.44/x
  3. Step 3: Cross multiply
    715,619.60x = 987,648.48 × 461,709.44
  4. Step 4: Simplify right side
    715,619.60x = 456,006,626,617.65
  5. Step 5: Solve for x
    x = 456,006,626,617.65/715,619.60
  6. Step 6: Final answer
    x = 637,219.31

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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.