Home / 990,870.93-1,367,318.40-549,357.32

Finding the Fourth Proportional to 990,870.93, 1,367,318.40 and 549,357.32

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Solution

The fourth proportional to 990,870.93, 1,367,318.40 and 549,357.32 is: 758,066.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,870.93 : 1,367,318.40 = 549,357.32 : x
  2. Step 2: Convert to fraction form
    990,870.93/1,367,318.40 = 549,357.32/x
  3. Step 3: Cross multiply
    990,870.93x = 1,367,318.40 × 549,357.32
  4. Step 4: Simplify right side
    990,870.93x = 751,146,364,974.10
  5. Step 5: Solve for x
    x = 751,146,364,974.10/990,870.93
  6. Step 6: Final answer
    x = 758,066.81

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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.