Home / 698,048.20-1,047,221.10-398,672.20

Finding the Fourth Proportional to 698,048.20, 1,047,221.10 and 398,672.20

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Solution

The fourth proportional to 698,048.20, 1,047,221.10 and 398,672.20 is: 598,093.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,048.20 : 1,047,221.10 = 398,672.20 : x
  2. Step 2: Convert to fraction form
    698,048.20/1,047,221.10 = 398,672.20/x
  3. Step 3: Cross multiply
    698,048.20x = 1,047,221.10 × 398,672.20
  4. Step 4: Simplify right side
    698,048.20x = 417,497,939,823.42
  5. Step 5: Solve for x
    x = 417,497,939,823.42/698,048.20
  6. Step 6: Final answer
    x = 598,093.28

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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.