Home / 991,205.85-1,367,779.28-549,694.65

Finding the Fourth Proportional to 991,205.85, 1,367,779.28 and 549,694.65

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Solution

The fourth proportional to 991,205.85, 1,367,779.28 and 549,694.65 is: 758,531.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,205.85 : 1,367,779.28 = 549,694.65 : x
  2. Step 2: Convert to fraction form
    991,205.85/1,367,779.28 = 549,694.65/x
  3. Step 3: Cross multiply
    991,205.85x = 1,367,779.28 × 549,694.65
  4. Step 4: Simplify right side
    991,205.85x = 751,860,949,848.38
  5. Step 5: Solve for x
    x = 751,860,949,848.38/991,205.85
  6. Step 6: Final answer
    x = 758,531.59

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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.