Home / 729,499.63-1,004,480.95-661,071.40

Finding the Fourth Proportional to 729,499.63, 1,004,480.95 and 661,071.40

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Solution

The fourth proportional to 729,499.63, 1,004,480.95 and 661,071.40 is: 910,259.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,499.63 : 1,004,480.95 = 661,071.40 : x
  2. Step 2: Convert to fraction form
    729,499.63/1,004,480.95 = 661,071.40/x
  3. Step 3: Cross multiply
    729,499.63x = 1,004,480.95 × 661,071.40
  4. Step 4: Simplify right side
    729,499.63x = 664,033,627,889.83
  5. Step 5: Solve for x
    x = 664,033,627,889.83/729,499.63
  6. Step 6: Final answer
    x = 910,259.03

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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.