Home / 547,276.40-821,570.70-307,581.20

Finding the Fourth Proportional to 547,276.40, 821,570.70 and 307,581.20

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Solution

The fourth proportional to 547,276.40, 821,570.70 and 307,581.20 is: 461,740.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,276.40 : 821,570.70 = 307,581.20 : x
  2. Step 2: Convert to fraction form
    547,276.40/821,570.70 = 307,581.20/x
  3. Step 3: Cross multiply
    547,276.40x = 821,570.70 × 307,581.20
  4. Step 4: Simplify right side
    547,276.40x = 252,699,701,790.84
  5. Step 5: Solve for x
    x = 252,699,701,790.84/547,276.40
  6. Step 6: Final answer
    x = 461,740.54

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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.