Home / 547,629.40-820,560.90-310,266.20

Finding the Fourth Proportional to 547,629.40, 820,560.90 and 310,266.20

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Solution

The fourth proportional to 547,629.40, 820,560.90 and 310,266.20 is: 464,898.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,629.40 : 820,560.90 = 310,266.20 : x
  2. Step 2: Convert to fraction form
    547,629.40/820,560.90 = 310,266.20/x
  3. Step 3: Cross multiply
    547,629.40x = 820,560.90 × 310,266.20
  4. Step 4: Simplify right side
    547,629.40x = 254,592,312,311.58
  5. Step 5: Solve for x
    x = 254,592,312,311.58/547,629.40
  6. Step 6: Final answer
    x = 464,898.91

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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.