Home / 651,932-899,669.40-380,188.34

Finding the Fourth Proportional to 651,932, 899,669.40 and 380,188.34

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Solution

The fourth proportional to 651,932, 899,669.40 and 380,188.34 is: 524,661.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,932 : 899,669.40 = 380,188.34 : x
  2. Step 2: Convert to fraction form
    651,932/899,669.40 = 380,188.34/x
  3. Step 3: Cross multiply
    651,932x = 899,669.40 × 380,188.34
  4. Step 4: Simplify right side
    651,932x = 342,043,815,734.80
  5. Step 5: Solve for x
    x = 342,043,815,734.80/651,932
  6. Step 6: Final answer
    x = 524,661.80

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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.