Home / 898,404.80-1,347,607.20-645,150.20

Finding the Fourth Proportional to 898,404.80, 1,347,607.20 and 645,150.20

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Solution

The fourth proportional to 898,404.80, 1,347,607.20 and 645,150.20 is: 967,725.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,404.80 : 1,347,607.20 = 645,150.20 : x
  2. Step 2: Convert to fraction form
    898,404.80/1,347,607.20 = 645,150.20/x
  3. Step 3: Cross multiply
    898,404.80x = 1,347,607.20 × 645,150.20
  4. Step 4: Simplify right side
    898,404.80x = 869,409,054,601.44
  5. Step 5: Solve for x
    x = 869,409,054,601.44/898,404.80
  6. Step 6: Final answer
    x = 967,725.30

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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.