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Finding the Fourth Proportional to 660,071.16, 910,742.06 and 373,591.24

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Solution

The fourth proportional to 660,071.16, 910,742.06 and 373,591.24 is: 515,467.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,071.16 : 910,742.06 = 373,591.24 : x
  2. Step 2: Convert to fraction form
    660,071.16/910,742.06 = 373,591.24/x
  3. Step 3: Cross multiply
    660,071.16x = 910,742.06 × 373,591.24
  4. Step 4: Simplify right side
    660,071.16x = 340,245,258,889.20
  5. Step 5: Solve for x
    x = 340,245,258,889.20/660,071.16
  6. Step 6: Final answer
    x = 515,467.55

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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.