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Finding the Fourth Proportional to 772,004.70, 1,158,007.05 and 728,702.10

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Solution

The fourth proportional to 772,004.70, 1,158,007.05 and 728,702.10 is: 1,093,053.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,004.70 : 1,158,007.05 = 728,702.10 : x
  2. Step 2: Convert to fraction form
    772,004.70/1,158,007.05 = 728,702.10/x
  3. Step 3: Cross multiply
    772,004.70x = 1,158,007.05 × 728,702.10
  4. Step 4: Simplify right side
    772,004.70x = 843,842,169,149.81
  5. Step 5: Solve for x
    x = 843,842,169,149.81/772,004.70
  6. Step 6: Final answer
    x = 1,093,053.15

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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.