Home / 1,088,128.80-1,631,415.60-488,599.20

Finding the Fourth Proportional to 1,088,128.80, 1,631,415.60 and 488,599.20

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Solution

The fourth proportional to 1,088,128.80, 1,631,415.60 and 488,599.20 is: 732,549.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088,128.80 : 1,631,415.60 = 488,599.20 : x
  2. Step 2: Convert to fraction form
    1,088,128.80/1,631,415.60 = 488,599.20/x
  3. Step 3: Cross multiply
    1,088,128.80x = 1,631,415.60 × 488,599.20
  4. Step 4: Simplify right side
    1,088,128.80x = 797,108,357,027.52
  5. Step 5: Solve for x
    x = 797,108,357,027.52/1,088,128.80
  6. Step 6: Final answer
    x = 732,549.64

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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.