Home / 698,109.60-1,047,682.80-277,687.20

Finding the Fourth Proportional to 698,109.60, 1,047,682.80 and 277,687.20

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Solution

The fourth proportional to 698,109.60, 1,047,682.80 and 277,687.20 is: 416,737.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,109.60 : 1,047,682.80 = 277,687.20 : x
  2. Step 2: Convert to fraction form
    698,109.60/1,047,682.80 = 277,687.20/x
  3. Step 3: Cross multiply
    698,109.60x = 1,047,682.80 × 277,687.20
  4. Step 4: Simplify right side
    698,109.60x = 290,928,103,220.16
  5. Step 5: Solve for x
    x = 290,928,103,220.16/698,109.60
  6. Step 6: Final answer
    x = 416,737.00

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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.