Home / 487,289.98-730,985.11-183,939.64

Finding the Fourth Proportional to 487,289.98, 730,985.11 and 183,939.64

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Solution

The fourth proportional to 487,289.98, 730,985.11 and 183,939.64 is: 275,928.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,289.98 : 730,985.11 = 183,939.64 : x
  2. Step 2: Convert to fraction form
    487,289.98/730,985.11 = 183,939.64/x
  3. Step 3: Cross multiply
    487,289.98x = 730,985.11 × 183,939.64
  4. Step 4: Simplify right side
    487,289.98x = 134,457,137,978.76
  5. Step 5: Solve for x
    x = 134,457,137,978.76/487,289.98
  6. Step 6: Final answer
    x = 275,928.39

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Similar ratio
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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.