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Finding the Fourth Proportional to 1,774,652.40, 2,661,978.60 and 829,868.40

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Solution

The fourth proportional to 1,774,652.40, 2,661,978.60 and 829,868.40 is: 1,244,802.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,774,652.40 : 2,661,978.60 = 829,868.40 : x
  2. Step 2: Convert to fraction form
    1,774,652.40/2,661,978.60 = 829,868.40/x
  3. Step 3: Cross multiply
    1,774,652.40x = 2,661,978.60 × 829,868.40
  4. Step 4: Simplify right side
    1,774,652.40x = 2,209,091,921,616.24
  5. Step 5: Solve for x
    x = 2,209,091,921,616.24/1,774,652.40
  6. Step 6: Final answer
    x = 1,244,802.60

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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.