Home / 1,386,478.25-1,913,012.02-805,356.17

Finding the Fourth Proportional to 1,386,478.25, 1,913,012.02 and 805,356.17

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Solution

The fourth proportional to 1,386,478.25, 1,913,012.02 and 805,356.17 is: 1,111,201.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,478.25 : 1,913,012.02 = 805,356.17 : x
  2. Step 2: Convert to fraction form
    1,386,478.25/1,913,012.02 = 805,356.17/x
  3. Step 3: Cross multiply
    1,386,478.25x = 1,913,012.02 × 805,356.17
  4. Step 4: Simplify right side
    1,386,478.25x = 1,540,656,033,591.16
  5. Step 5: Solve for x
    x = 1,540,656,033,591.16/1,386,478.25
  6. Step 6: Final answer
    x = 1,111,201.01

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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.