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Finding the Fourth Proportional to 865,756.50, 1,298,597.79 and 845,483.01

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Solution

The fourth proportional to 865,756.50, 1,298,597.79 and 845,483.01 is: 1,268,188.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,756.50 : 1,298,597.79 = 845,483.01 : x
  2. Step 2: Convert to fraction form
    865,756.50/1,298,597.79 = 845,483.01/x
  3. Step 3: Cross multiply
    865,756.50x = 1,298,597.79 × 845,483.01
  4. Step 4: Simplify right side
    865,756.50x = 1,097,942,368,268.55
  5. Step 5: Solve for x
    x = 1,097,942,368,268.55/865,756.50
  6. Step 6: Final answer
    x = 1,268,188.42

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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.