Home / 839,854.12-1,158,285.66-709,669.56

Finding the Fourth Proportional to 839,854.12, 1,158,285.66 and 709,669.56

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Solution

The fourth proportional to 839,854.12, 1,158,285.66 and 709,669.56 is: 978,741.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,854.12 : 1,158,285.66 = 709,669.56 : x
  2. Step 2: Convert to fraction form
    839,854.12/1,158,285.66 = 709,669.56/x
  3. Step 3: Cross multiply
    839,854.12x = 1,158,285.66 × 709,669.56
  4. Step 4: Simplify right side
    839,854.12x = 822,000,074,686.51
  5. Step 5: Solve for x
    x = 822,000,074,686.51/839,854.12
  6. Step 6: Final answer
    x = 978,741.49

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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.