Home / 1,007,881.16-1,390,876.11-555,172.16

Finding the Fourth Proportional to 1,007,881.16, 1,390,876.11 and 555,172.16

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Solution

The fourth proportional to 1,007,881.16, 1,390,876.11 and 555,172.16 is: 766,137.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,881.16 : 1,390,876.11 = 555,172.16 : x
  2. Step 2: Convert to fraction form
    1,007,881.16/1,390,876.11 = 555,172.16/x
  3. Step 3: Cross multiply
    1,007,881.16x = 1,390,876.11 × 555,172.16
  4. Step 4: Simplify right side
    1,007,881.16x = 772,175,687,326.72
  5. Step 5: Solve for x
    x = 772,175,687,326.72/1,007,881.16
  6. Step 6: Final answer
    x = 766,137.64

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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.