Home / 748,289.64-1,032,662.34-408,779.76

Finding the Fourth Proportional to 748,289.64, 1,032,662.34 and 408,779.76

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Solution

The fourth proportional to 748,289.64, 1,032,662.34 and 408,779.76 is: 564,128.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,289.64 : 1,032,662.34 = 408,779.76 : x
  2. Step 2: Convert to fraction form
    748,289.64/1,032,662.34 = 408,779.76/x
  3. Step 3: Cross multiply
    748,289.64x = 1,032,662.34 × 408,779.76
  4. Step 4: Simplify right side
    748,289.64x = 422,131,463,506.24
  5. Step 5: Solve for x
    x = 422,131,463,506.24/748,289.64
  6. Step 6: Final answer
    x = 564,128.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.