Home / 698,046.20-1,047,218.10-398,670.20

Finding the Fourth Proportional to 698,046.20, 1,047,218.10 and 398,670.20

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Solution

The fourth proportional to 698,046.20, 1,047,218.10 and 398,670.20 is: 598,090.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,046.20 : 1,047,218.10 = 398,670.20 : x
  2. Step 2: Convert to fraction form
    698,046.20/1,047,218.10 = 398,670.20/x
  3. Step 3: Cross multiply
    698,046.20x = 1,047,218.10 × 398,670.20
  4. Step 4: Simplify right side
    698,046.20x = 417,494,649,370.62
  5. Step 5: Solve for x
    x = 417,494,649,370.62/698,046.20
  6. Step 6: Final answer
    x = 598,090.28

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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.