Home / 1,115,196.48-1,672,792.80-316,485.76

Finding the Fourth Proportional to 1,115,196.48, 1,672,792.80 and 316,485.76

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Solution

The fourth proportional to 1,115,196.48, 1,672,792.80 and 316,485.76 is: 474,728.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,196.48 : 1,672,792.80 = 316,485.76 : x
  2. Step 2: Convert to fraction form
    1,115,196.48/1,672,792.80 = 316,485.76/x
  3. Step 3: Cross multiply
    1,115,196.48x = 1,672,792.80 × 316,485.76
  4. Step 4: Simplify right side
    1,115,196.48x = 529,415,100,630.53
  5. Step 5: Solve for x
    x = 529,415,100,630.53/1,115,196.48
  6. Step 6: Final answer
    x = 474,728.10

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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.