Home / 770,643.72-1,063,702.26-448,416.27

Finding the Fourth Proportional to 770,643.72, 1,063,702.26 and 448,416.27

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Solution

The fourth proportional to 770,643.72, 1,063,702.26 and 448,416.27 is: 618,938.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,643.72 : 1,063,702.26 = 448,416.27 : x
  2. Step 2: Convert to fraction form
    770,643.72/1,063,702.26 = 448,416.27/x
  3. Step 3: Cross multiply
    770,643.72x = 1,063,702.26 × 448,416.27
  4. Step 4: Simplify right side
    770,643.72x = 476,981,399,819.77
  5. Step 5: Solve for x
    x = 476,981,399,819.77/770,643.72
  6. Step 6: Final answer
    x = 618,938.93

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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.