Home / 1,115,341.72-1,673,009.13-316,623.81

Finding the Fourth Proportional to 1,115,341.72, 1,673,009.13 and 316,623.81

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Solution

The fourth proportional to 1,115,341.72, 1,673,009.13 and 316,623.81 is: 474,934.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,341.72 : 1,673,009.13 = 316,623.81 : x
  2. Step 2: Convert to fraction form
    1,115,341.72/1,673,009.13 = 316,623.81/x
  3. Step 3: Cross multiply
    1,115,341.72x = 1,673,009.13 × 316,623.81
  4. Step 4: Simplify right side
    1,115,341.72x = 529,714,524,905.39
  5. Step 5: Solve for x
    x = 529,714,524,905.39/1,115,341.72
  6. Step 6: Final answer
    x = 474,934.74

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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.