Home / 547,784.40-821,740.60-173,845.20

Finding the Fourth Proportional to 547,784.40, 821,740.60 and 173,845.20

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Solution

The fourth proportional to 547,784.40, 821,740.60 and 173,845.20 is: 260,788.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,784.40 : 821,740.60 = 173,845.20 : x
  2. Step 2: Convert to fraction form
    547,784.40/821,740.60 = 173,845.20/x
  3. Step 3: Cross multiply
    547,784.40x = 821,740.60 × 173,845.20
  4. Step 4: Simplify right side
    547,784.40x = 142,855,658,955.12
  5. Step 5: Solve for x
    x = 142,855,658,955.12/547,784.40
  6. Step 6: Final answer
    x = 260,788.11

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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.