Home / 1,009,054.86-1,398,506.61-990,159.18

Finding the Fourth Proportional to 1,009,054.86, 1,398,506.61 and 990,159.18

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Solution

The fourth proportional to 1,009,054.86, 1,398,506.61 and 990,159.18 is: 1,372,318.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,054.86 : 1,398,506.61 = 990,159.18 : x
  2. Step 2: Convert to fraction form
    1,009,054.86/1,398,506.61 = 990,159.18/x
  3. Step 3: Cross multiply
    1,009,054.86x = 1,398,506.61 × 990,159.18
  4. Step 4: Simplify right side
    1,009,054.86x = 1,384,744,158,182.18
  5. Step 5: Solve for x
    x = 1,384,744,158,182.18/1,009,054.86
  6. Step 6: Final answer
    x = 1,372,318.01

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.