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Finding the Fourth Proportional to 648,804.09, 971,901.23 and 323,611.77

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Solution

The fourth proportional to 648,804.09, 971,901.23 and 323,611.77 is: 484,766.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,804.09 : 971,901.23 = 323,611.77 : x
  2. Step 2: Convert to fraction form
    648,804.09/971,901.23 = 323,611.77/x
  3. Step 3: Cross multiply
    648,804.09x = 971,901.23 × 323,611.77
  4. Step 4: Simplify right side
    648,804.09x = 314,518,675,687.42
  5. Step 5: Solve for x
    x = 314,518,675,687.42/648,804.09
  6. Step 6: Final answer
    x = 484,766.79

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Double scale
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1.5x scale

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.