Home / 883,698.86-1,324,312.74-478,015.43

Finding the Fourth Proportional to 883,698.86, 1,324,312.74 and 478,015.43

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Solution

The fourth proportional to 883,698.86, 1,324,312.74 and 478,015.43 is: 716,354.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,698.86 : 1,324,312.74 = 478,015.43 : x
  2. Step 2: Convert to fraction form
    883,698.86/1,324,312.74 = 478,015.43/x
  3. Step 3: Cross multiply
    883,698.86x = 1,324,312.74 × 478,015.43
  4. Step 4: Simplify right side
    883,698.86x = 633,041,917,244.02
  5. Step 5: Solve for x
    x = 633,041,917,244.02/883,698.86
  6. Step 6: Final answer
    x = 716,354.79

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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.