Home / 1,820,185.70-2,730,278.55-490,489.70

Finding the Fourth Proportional to 1,820,185.70, 2,730,278.55 and 490,489.70

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Solution

The fourth proportional to 1,820,185.70, 2,730,278.55 and 490,489.70 is: 735,734.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820,185.70 : 2,730,278.55 = 490,489.70 : x
  2. Step 2: Convert to fraction form
    1,820,185.70/2,730,278.55 = 490,489.70/x
  3. Step 3: Cross multiply
    1,820,185.70x = 2,730,278.55 × 490,489.70
  4. Step 4: Simplify right side
    1,820,185.70x = 1,339,173,506,905.94
  5. Step 5: Solve for x
    x = 1,339,173,506,905.94/1,820,185.70
  6. Step 6: Final answer
    x = 735,734.55

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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.