Home / 547,277.40-821,572.20-307,582.20

Finding the Fourth Proportional to 547,277.40, 821,572.20 and 307,582.20

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Solution

The fourth proportional to 547,277.40, 821,572.20 and 307,582.20 is: 461,742.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,277.40 : 821,572.20 = 307,582.20 : x
  2. Step 2: Convert to fraction form
    547,277.40/821,572.20 = 307,582.20/x
  3. Step 3: Cross multiply
    547,277.40x = 821,572.20 × 307,582.20
  4. Step 4: Simplify right side
    547,277.40x = 252,700,984,734.84
  5. Step 5: Solve for x
    x = 252,700,984,734.84/547,277.40
  6. Step 6: Final answer
    x = 461,742.04

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1.5x scale

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.