Home / 869,311.61-1,302,172.44-644,925.41

Finding the Fourth Proportional to 869,311.61, 1,302,172.44 and 644,925.41

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Solution

The fourth proportional to 869,311.61, 1,302,172.44 and 644,925.41 is: 966,056.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,311.61 : 1,302,172.44 = 644,925.41 : x
  2. Step 2: Convert to fraction form
    869,311.61/1,302,172.44 = 644,925.41/x
  3. Step 3: Cross multiply
    869,311.61x = 1,302,172.44 × 644,925.41
  4. Step 4: Simplify right side
    869,311.61x = 839,804,088,246.84
  5. Step 5: Solve for x
    x = 839,804,088,246.84/869,311.61
  6. Step 6: Final answer
    x = 966,056.46

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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.