Home / 1,121,701.23-1,547,939.70-612,403.60

Finding the Fourth Proportional to 1,121,701.23, 1,547,939.70 and 612,403.60

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Solution

The fourth proportional to 1,121,701.23, 1,547,939.70 and 612,403.60 is: 845,112.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,701.23 : 1,547,939.70 = 612,403.60 : x
  2. Step 2: Convert to fraction form
    1,121,701.23/1,547,939.70 = 612,403.60/x
  3. Step 3: Cross multiply
    1,121,701.23x = 1,547,939.70 × 612,403.60
  4. Step 4: Simplify right side
    1,121,701.23x = 947,963,844,862.92
  5. Step 5: Solve for x
    x = 947,963,844,862.92/1,121,701.23
  6. Step 6: Final answer
    x = 845,112.60

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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.