Home / 749,388.54-1,034,130.56-427,202.40

Finding the Fourth Proportional to 749,388.54, 1,034,130.56 and 427,202.40

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Solution

The fourth proportional to 749,388.54, 1,034,130.56 and 427,202.40 is: 589,524.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,388.54 : 1,034,130.56 = 427,202.40 : x
  2. Step 2: Convert to fraction form
    749,388.54/1,034,130.56 = 427,202.40/x
  3. Step 3: Cross multiply
    749,388.54x = 1,034,130.56 × 427,202.40
  4. Step 4: Simplify right side
    749,388.54x = 441,783,057,145.34
  5. Step 5: Solve for x
    x = 441,783,057,145.34/749,388.54
  6. Step 6: Final answer
    x = 589,524.70

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.