Home / 1,115,090.28-1,672,698.96-316,309.32

Finding the Fourth Proportional to 1,115,090.28, 1,672,698.96 and 316,309.32

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Solution

The fourth proportional to 1,115,090.28, 1,672,698.96 and 316,309.32 is: 474,482.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,090.28 : 1,672,698.96 = 316,309.32 : x
  2. Step 2: Convert to fraction form
    1,115,090.28/1,672,698.96 = 316,309.32/x
  3. Step 3: Cross multiply
    1,115,090.28x = 1,672,698.96 × 316,309.32
  4. Step 4: Simplify right side
    1,115,090.28x = 529,090,270,602.31
  5. Step 5: Solve for x
    x = 529,090,270,602.31/1,115,090.28
  6. Step 6: Final answer
    x = 474,482.00

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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.