Home / 646,987.77-892,831.07-360,501.69

Finding the Fourth Proportional to 646,987.77, 892,831.07 and 360,501.69

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Solution

The fourth proportional to 646,987.77, 892,831.07 and 360,501.69 is: 497,485.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,987.77 : 892,831.07 = 360,501.69 : x
  2. Step 2: Convert to fraction form
    646,987.77/892,831.07 = 360,501.69/x
  3. Step 3: Cross multiply
    646,987.77x = 892,831.07 × 360,501.69
  4. Step 4: Simplify right side
    646,987.77x = 321,867,107,817.00
  5. Step 5: Solve for x
    x = 321,867,107,817.00/646,987.77
  6. Step 6: Final answer
    x = 497,485.61

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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.