Home / 665,811.46-918,823.98-359,887.22

Finding the Fourth Proportional to 665,811.46, 918,823.98 and 359,887.22

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Solution

The fourth proportional to 665,811.46, 918,823.98 and 359,887.22 is: 496,646.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,811.46 : 918,823.98 = 359,887.22 : x
  2. Step 2: Convert to fraction form
    665,811.46/918,823.98 = 359,887.22/x
  3. Step 3: Cross multiply
    665,811.46x = 918,823.98 × 359,887.22
  4. Step 4: Simplify right side
    665,811.46x = 330,673,007,831.54
  5. Step 5: Solve for x
    x = 330,673,007,831.54/665,811.46
  6. Step 6: Final answer
    x = 496,646.61

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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.