Home / 840,907.63-1,261,562.33-272,289.32

Finding the Fourth Proportional to 840,907.63, 1,261,562.33 and 272,289.32

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Solution

The fourth proportional to 840,907.63, 1,261,562.33 and 272,289.32 is: 408,499.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,907.63 : 1,261,562.33 = 272,289.32 : x
  2. Step 2: Convert to fraction form
    840,907.63/1,261,562.33 = 272,289.32/x
  3. Step 3: Cross multiply
    840,907.63x = 1,261,562.33 × 272,289.32
  4. Step 4: Simplify right side
    840,907.63x = 343,509,948,973.32
  5. Step 5: Solve for x
    x = 343,509,948,973.32/840,907.63
  6. Step 6: Final answer
    x = 408,499.03

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Double scale
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1.5x scale

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.