Home / 640,831.50-961,457.85-262,070.94

Finding the Fourth Proportional to 640,831.50, 961,457.85 and 262,070.94

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Solution

The fourth proportional to 640,831.50, 961,457.85 and 262,070.94 is: 393,192.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,831.50 : 961,457.85 = 262,070.94 : x
  2. Step 2: Convert to fraction form
    640,831.50/961,457.85 = 262,070.94/x
  3. Step 3: Cross multiply
    640,831.50x = 961,457.85 × 262,070.94
  4. Step 4: Simplify right side
    640,831.50x = 251,970,166,125.35
  5. Step 5: Solve for x
    x = 251,970,166,125.35/640,831.50
  6. Step 6: Final answer
    x = 393,192.54

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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.