Home / 1,386,603.84-1,913,525.96-813,653.56

Finding the Fourth Proportional to 1,386,603.84, 1,913,525.96 and 813,653.56

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Solution

The fourth proportional to 1,386,603.84, 1,913,525.96 and 813,653.56 is: 1,122,849.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,603.84 : 1,913,525.96 = 813,653.56 : x
  2. Step 2: Convert to fraction form
    1,386,603.84/1,913,525.96 = 813,653.56/x
  3. Step 3: Cross multiply
    1,386,603.84x = 1,913,525.96 × 813,653.56
  4. Step 4: Simplify right side
    1,386,603.84x = 1,556,947,209,506.42
  5. Step 5: Solve for x
    x = 1,556,947,209,506.42/1,386,603.84
  6. Step 6: Final answer
    x = 1,122,849.34

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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.