Home / 547,815.10-821,722.65-370,522.30

Finding the Fourth Proportional to 547,815.10, 821,722.65 and 370,522.30

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Solution

The fourth proportional to 547,815.10, 821,722.65 and 370,522.30 is: 555,783.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,815.10 : 821,722.65 = 370,522.30 : x
  2. Step 2: Convert to fraction form
    547,815.10/821,722.65 = 370,522.30/x
  3. Step 3: Cross multiply
    547,815.10x = 821,722.65 × 370,522.30
  4. Step 4: Simplify right side
    547,815.10x = 304,466,566,240.10
  5. Step 5: Solve for x
    x = 304,466,566,240.10/547,815.10
  6. Step 6: Final answer
    x = 555,783.45

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Double scale
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Similar ratio
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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.