Home / 651,929-899,665.26-380,185.34

Finding the Fourth Proportional to 651,929, 899,665.26 and 380,185.34

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Solution

The fourth proportional to 651,929, 899,665.26 and 380,185.34 is: 524,657.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,929 : 899,665.26 = 380,185.34 : x
  2. Step 2: Convert to fraction form
    651,929/899,665.26 = 380,185.34/x
  3. Step 3: Cross multiply
    651,929x = 899,665.26 × 380,185.34
  4. Step 4: Simplify right side
    651,929x = 342,039,542,759.29
  5. Step 5: Solve for x
    x = 342,039,542,759.29/651,929
  6. Step 6: Final answer
    x = 524,657.66

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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.