Home / 1,289,948.16-1,780,148.37-709,196.46

Finding the Fourth Proportional to 1,289,948.16, 1,780,148.37 and 709,196.46

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Solution

The fourth proportional to 1,289,948.16, 1,780,148.37 and 709,196.46 is: 978,702.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,948.16 : 1,780,148.37 = 709,196.46 : x
  2. Step 2: Convert to fraction form
    1,289,948.16/1,780,148.37 = 709,196.46/x
  3. Step 3: Cross multiply
    1,289,948.16x = 1,780,148.37 × 709,196.46
  4. Step 4: Simplify right side
    1,289,948.16x = 1,262,474,922,278.77
  5. Step 5: Solve for x
    x = 1,262,474,922,278.77/1,289,948.16
  6. Step 6: Final answer
    x = 978,702.06

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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.