Home / 1,191,345.78-1,644,055.20-647,479.92

Finding the Fourth Proportional to 1,191,345.78, 1,644,055.20 and 647,479.92

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Solution

The fourth proportional to 1,191,345.78, 1,644,055.20 and 647,479.92 is: 893,521.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,345.78 : 1,644,055.20 = 647,479.92 : x
  2. Step 2: Convert to fraction form
    1,191,345.78/1,644,055.20 = 647,479.92/x
  3. Step 3: Cross multiply
    1,191,345.78x = 1,644,055.20 × 647,479.92
  4. Step 4: Simplify right side
    1,191,345.78x = 1,064,492,729,371.58
  5. Step 5: Solve for x
    x = 1,064,492,729,371.58/1,191,345.78
  6. Step 6: Final answer
    x = 893,521.22

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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.