Home / 787,354.74-1,085,989.68-525,578.04

Finding the Fourth Proportional to 787,354.74, 1,085,989.68 and 525,578.04

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Solution

The fourth proportional to 787,354.74, 1,085,989.68 and 525,578.04 is: 724,923.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,354.74 : 1,085,989.68 = 525,578.04 : x
  2. Step 2: Convert to fraction form
    787,354.74/1,085,989.68 = 525,578.04/x
  3. Step 3: Cross multiply
    787,354.74x = 1,085,989.68 × 525,578.04
  4. Step 4: Simplify right side
    787,354.74x = 570,772,327,474.63
  5. Step 5: Solve for x
    x = 570,772,327,474.63/787,354.74
  6. Step 6: Final answer
    x = 724,923.97

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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.