Home / 698,889.20-1,047,642.60-277,602.80

Finding the Fourth Proportional to 698,889.20, 1,047,642.60 and 277,602.80

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Solution

The fourth proportional to 698,889.20, 1,047,642.60 and 277,602.80 is: 416,129.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,889.20 : 1,047,642.60 = 277,602.80 : x
  2. Step 2: Convert to fraction form
    698,889.20/1,047,642.60 = 277,602.80/x
  3. Step 3: Cross multiply
    698,889.20x = 1,047,642.60 × 277,602.80
  4. Step 4: Simplify right side
    698,889.20x = 290,828,519,159.28
  5. Step 5: Solve for x
    x = 290,828,519,159.28/698,889.20
  6. Step 6: Final answer
    x = 416,129.65

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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.