Home / 986,507.04-1,361,607.21-578,739.87

Finding the Fourth Proportional to 986,507.04, 1,361,607.21 and 578,739.87

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Solution

The fourth proportional to 986,507.04, 1,361,607.21 and 578,739.87 is: 798,794.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,507.04 : 1,361,607.21 = 578,739.87 : x
  2. Step 2: Convert to fraction form
    986,507.04/1,361,607.21 = 578,739.87/x
  3. Step 3: Cross multiply
    986,507.04x = 1,361,607.21 × 578,739.87
  4. Step 4: Simplify right side
    986,507.04x = 788,016,376,812.76
  5. Step 5: Solve for x
    x = 788,016,376,812.76/986,507.04
  6. Step 6: Final answer
    x = 798,794.48

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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.