Home / 1,138,013.49-1,570,678.48-730,630.06

Finding the Fourth Proportional to 1,138,013.49, 1,570,678.48 and 730,630.06

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Solution

The fourth proportional to 1,138,013.49, 1,570,678.48 and 730,630.06 is: 1,008,410.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,013.49 : 1,570,678.48 = 730,630.06 : x
  2. Step 2: Convert to fraction form
    1,138,013.49/1,570,678.48 = 730,630.06/x
  3. Step 3: Cross multiply
    1,138,013.49x = 1,570,678.48 × 730,630.06
  4. Step 4: Simplify right side
    1,138,013.49x = 1,147,584,912,083.11
  5. Step 5: Solve for x
    x = 1,147,584,912,083.11/1,138,013.49
  6. Step 6: Final answer
    x = 1,008,410.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.