Home / 986,507.54-1,361,607.90-578,740.37

Finding the Fourth Proportional to 986,507.54, 1,361,607.90 and 578,740.37

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Solution

The fourth proportional to 986,507.54, 1,361,607.90 and 578,740.37 is: 798,795.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,507.54 : 1,361,607.90 = 578,740.37 : x
  2. Step 2: Convert to fraction form
    986,507.54/1,361,607.90 = 578,740.37/x
  3. Step 3: Cross multiply
    986,507.54x = 1,361,607.90 × 578,740.37
  4. Step 4: Simplify right side
    986,507.54x = 788,017,456,947.22
  5. Step 5: Solve for x
    x = 788,017,456,947.22/986,507.54
  6. Step 6: Final answer
    x = 798,795.17

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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.