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Finding the Fourth Proportional to 640,941.86, 884,463.72 and 350,495.76

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Solution

The fourth proportional to 640,941.86, 884,463.72 and 350,495.76 is: 483,664.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,941.86 : 884,463.72 = 350,495.76 : x
  2. Step 2: Convert to fraction form
    640,941.86/884,463.72 = 350,495.76/x
  3. Step 3: Cross multiply
    640,941.86x = 884,463.72 × 350,495.76
  4. Step 4: Simplify right side
    640,941.86x = 310,000,783,733.83
  5. Step 5: Solve for x
    x = 310,000,783,733.83/640,941.86
  6. Step 6: Final answer
    x = 483,664.44

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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.