Home / 840,848.16-1,160,396.10-478,324.56

Finding the Fourth Proportional to 840,848.16, 1,160,396.10 and 478,324.56

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Solution

The fourth proportional to 840,848.16, 1,160,396.10 and 478,324.56 is: 660,102.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,848.16 : 1,160,396.10 = 478,324.56 : x
  2. Step 2: Convert to fraction form
    840,848.16/1,160,396.10 = 478,324.56/x
  3. Step 3: Cross multiply
    840,848.16x = 1,160,396.10 × 478,324.56
  4. Step 4: Simplify right side
    840,848.16x = 555,045,953,958.22
  5. Step 5: Solve for x
    x = 555,045,953,958.22/840,848.16
  6. Step 6: Final answer
    x = 660,102.48

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Double scale
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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.