Home / 912,390.80-1,258,989.41-504,437.54

Finding the Fourth Proportional to 912,390.80, 1,258,989.41 and 504,437.54

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Solution

The fourth proportional to 912,390.80, 1,258,989.41 and 504,437.54 is: 696,063.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,390.80 : 1,258,989.41 = 504,437.54 : x
  2. Step 2: Convert to fraction form
    912,390.80/1,258,989.41 = 504,437.54/x
  3. Step 3: Cross multiply
    912,390.80x = 1,258,989.41 × 504,437.54
  4. Step 4: Simplify right side
    912,390.80x = 635,081,515,832.60
  5. Step 5: Solve for x
    x = 635,081,515,832.60/912,390.80
  6. Step 6: Final answer
    x = 696,063.05

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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.