Home / 829,078.80-1,243,618.20-738,877.20

Finding the Fourth Proportional to 829,078.80, 1,243,618.20 and 738,877.20

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Solution

The fourth proportional to 829,078.80, 1,243,618.20 and 738,877.20 is: 1,108,315.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,078.80 : 1,243,618.20 = 738,877.20 : x
  2. Step 2: Convert to fraction form
    829,078.80/1,243,618.20 = 738,877.20/x
  3. Step 3: Cross multiply
    829,078.80x = 1,243,618.20 × 738,877.20
  4. Step 4: Simplify right side
    829,078.80x = 918,881,133,485.04
  5. Step 5: Solve for x
    x = 918,881,133,485.04/829,078.80
  6. Step 6: Final answer
    x = 1,108,315.80

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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.