Home / 668,445.48-1,003,076.46-289,467.54

Finding the Fourth Proportional to 668,445.48, 1,003,076.46 and 289,467.54

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Solution

The fourth proportional to 668,445.48, 1,003,076.46 and 289,467.54 is: 434,378.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,445.48 : 1,003,076.46 = 289,467.54 : x
  2. Step 2: Convert to fraction form
    668,445.48/1,003,076.46 = 289,467.54/x
  3. Step 3: Cross multiply
    668,445.48x = 1,003,076.46 × 289,467.54
  4. Step 4: Simplify right side
    668,445.48x = 290,358,075,308.11
  5. Step 5: Solve for x
    x = 290,358,075,308.11/668,445.48
  6. Step 6: Final answer
    x = 434,378.10

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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.