Home / 1,115,090.36-1,672,699.08-316,309.40

Finding the Fourth Proportional to 1,115,090.36, 1,672,699.08 and 316,309.40

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Solution

The fourth proportional to 1,115,090.36, 1,672,699.08 and 316,309.40 is: 474,482.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,090.36 : 1,672,699.08 = 316,309.40 : x
  2. Step 2: Convert to fraction form
    1,115,090.36/1,672,699.08 = 316,309.40/x
  3. Step 3: Cross multiply
    1,115,090.36x = 1,672,699.08 × 316,309.40
  4. Step 4: Simplify right side
    1,115,090.36x = 529,090,442,375.35
  5. Step 5: Solve for x
    x = 529,090,442,375.35/1,115,090.36
  6. Step 6: Final answer
    x = 474,482.12

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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.