Home / 1,187,547-1,638,918.54-651,106.68

Finding the Fourth Proportional to 1,187,547, 1,638,918.54 and 651,106.68

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Solution

The fourth proportional to 1,187,547, 1,638,918.54 and 651,106.68 is: 898,584.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,547 : 1,638,918.54 = 651,106.68 : x
  2. Step 2: Convert to fraction form
    1,187,547/1,638,918.54 = 651,106.68/x
  3. Step 3: Cross multiply
    1,187,547x = 1,638,918.54 × 651,106.68
  4. Step 4: Simplify right side
    1,187,547x = 1,067,110,809,369.85
  5. Step 5: Solve for x
    x = 1,067,110,809,369.85/1,187,547
  6. Step 6: Final answer
    x = 898,584.06

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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.