Home / 990,887.71-1,367,341.56-549,374.10

Finding the Fourth Proportional to 990,887.71, 1,367,341.56 and 549,374.10

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Solution

The fourth proportional to 990,887.71, 1,367,341.56 and 549,374.10 is: 758,089.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,887.71 : 1,367,341.56 = 549,374.10 : x
  2. Step 2: Convert to fraction form
    990,887.71/1,367,341.56 = 549,374.10/x
  3. Step 3: Cross multiply
    990,887.71x = 1,367,341.56 × 549,374.10
  4. Step 4: Simplify right side
    990,887.71x = 751,182,033,790.07
  5. Step 5: Solve for x
    x = 751,182,033,790.07/990,887.71
  6. Step 6: Final answer
    x = 758,089.97

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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.