Home / 738,133.60-1,107,200.40-644,821.60

Finding the Fourth Proportional to 738,133.60, 1,107,200.40 and 644,821.60

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Solution

The fourth proportional to 738,133.60, 1,107,200.40 and 644,821.60 is: 967,232.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,133.60 : 1,107,200.40 = 644,821.60 : x
  2. Step 2: Convert to fraction form
    738,133.60/1,107,200.40 = 644,821.60/x
  3. Step 3: Cross multiply
    738,133.60x = 1,107,200.40 × 644,821.60
  4. Step 4: Simplify right side
    738,133.60x = 713,946,733,448.64
  5. Step 5: Solve for x
    x = 713,946,733,448.64/738,133.60
  6. Step 6: Final answer
    x = 967,232.40

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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.