Home / 1,121,639.54-1,547,804-612,243.50

Finding the Fourth Proportional to 1,121,639.54, 1,547,804 and 612,243.50

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Solution

The fourth proportional to 1,121,639.54, 1,547,804 and 612,243.50 is: 844,864.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,639.54 : 1,547,804 = 612,243.50 : x
  2. Step 2: Convert to fraction form
    1,121,639.54/1,547,804 = 612,243.50/x
  3. Step 3: Cross multiply
    1,121,639.54x = 1,547,804 × 612,243.50
  4. Step 4: Simplify right side
    1,121,639.54x = 947,632,938,274
  5. Step 5: Solve for x
    x = 947,632,938,274/1,121,639.54
  6. Step 6: Final answer
    x = 844,864.06

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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.