Home / 446,831.40-670,247.10-426,095.40

Finding the Fourth Proportional to 446,831.40, 670,247.10 and 426,095.40

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Solution

The fourth proportional to 446,831.40, 670,247.10 and 426,095.40 is: 639,143.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,831.40 : 670,247.10 = 426,095.40 : x
  2. Step 2: Convert to fraction form
    446,831.40/670,247.10 = 426,095.40/x
  3. Step 3: Cross multiply
    446,831.40x = 670,247.10 × 426,095.40
  4. Step 4: Simplify right side
    446,831.40x = 285,589,206,173.34
  5. Step 5: Solve for x
    x = 285,589,206,173.34/446,831.40
  6. Step 6: Final answer
    x = 639,143.10

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.