Home / 689,907.20-1,034,485.56-240,507.45

Finding the Fourth Proportional to 689,907.20, 1,034,485.56 and 240,507.45

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Solution

The fourth proportional to 689,907.20, 1,034,485.56 and 240,507.45 is: 360,630.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,907.20 : 1,034,485.56 = 240,507.45 : x
  2. Step 2: Convert to fraction form
    689,907.20/1,034,485.56 = 240,507.45/x
  3. Step 3: Cross multiply
    689,907.20x = 1,034,485.56 × 240,507.45
  4. Step 4: Simplify right side
    689,907.20x = 248,801,484,097.42
  5. Step 5: Solve for x
    x = 248,801,484,097.42/689,907.20
  6. Step 6: Final answer
    x = 360,630.37

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Double scale
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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.