Home / 738,140.40-1,107,210.60-644,828.40

Finding the Fourth Proportional to 738,140.40, 1,107,210.60 and 644,828.40

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Solution

The fourth proportional to 738,140.40, 1,107,210.60 and 644,828.40 is: 967,242.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,140.40 : 1,107,210.60 = 644,828.40 : x
  2. Step 2: Convert to fraction form
    738,140.40/1,107,210.60 = 644,828.40/x
  3. Step 3: Cross multiply
    738,140.40x = 1,107,210.60 × 644,828.40
  4. Step 4: Simplify right side
    738,140.40x = 713,960,839,661.04
  5. Step 5: Solve for x
    x = 713,960,839,661.04/738,140.40
  6. Step 6: Final answer
    x = 967,242.60

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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.