Home / 729,975.86-1,007,346.21-407,676.50

Finding the Fourth Proportional to 729,975.86, 1,007,346.21 and 407,676.50

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Solution

The fourth proportional to 729,975.86, 1,007,346.21 and 407,676.50 is: 562,582.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,975.86 : 1,007,346.21 = 407,676.50 : x
  2. Step 2: Convert to fraction form
    729,975.86/1,007,346.21 = 407,676.50/x
  3. Step 3: Cross multiply
    729,975.86x = 1,007,346.21 × 407,676.50
  4. Step 4: Simplify right side
    729,975.86x = 410,671,377,181.07
  5. Step 5: Solve for x
    x = 410,671,377,181.07/729,975.86
  6. Step 6: Final answer
    x = 562,582.13

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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.