Home / 660,976.40-912,145.02-374,551.22

Finding the Fourth Proportional to 660,976.40, 912,145.02 and 374,551.22

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Solution

The fourth proportional to 660,976.40, 912,145.02 and 374,551.22 is: 516,879.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,976.40 : 912,145.02 = 374,551.22 : x
  2. Step 2: Convert to fraction form
    660,976.40/912,145.02 = 374,551.22/x
  3. Step 3: Cross multiply
    660,976.40x = 912,145.02 × 374,551.22
  4. Step 4: Simplify right side
    660,976.40x = 341,645,030,057.92
  5. Step 5: Solve for x
    x = 341,645,030,057.92/660,976.40
  6. Step 6: Final answer
    x = 516,879.32

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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.