Home / 990,047.14-1,485,058.16-316,119.89

Finding the Fourth Proportional to 990,047.14, 1,485,058.16 and 316,119.89

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Solution

The fourth proportional to 990,047.14, 1,485,058.16 and 316,119.89 is: 474,175.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,047.14 : 1,485,058.16 = 316,119.89 : x
  2. Step 2: Convert to fraction form
    990,047.14/1,485,058.16 = 316,119.89/x
  3. Step 3: Cross multiply
    990,047.14x = 1,485,058.16 × 316,119.89
  4. Step 4: Simplify right side
    990,047.14x = 469,456,426,685.75
  5. Step 5: Solve for x
    x = 469,456,426,685.75/990,047.14
  6. Step 6: Final answer
    x = 474,175.83

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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.