Home / 991,197.81-1,367,768.01-549,686.55

Finding the Fourth Proportional to 991,197.81, 1,367,768.01 and 549,686.55

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Solution

The fourth proportional to 991,197.81, 1,367,768.01 and 549,686.55 is: 758,520.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,197.81 : 1,367,768.01 = 549,686.55 : x
  2. Step 2: Convert to fraction form
    991,197.81/1,367,768.01 = 549,686.55/x
  3. Step 3: Cross multiply
    991,197.81x = 1,367,768.01 × 549,686.55
  4. Step 4: Simplify right side
    991,197.81x = 751,843,675,868.83
  5. Step 5: Solve for x
    x = 751,843,675,868.83/991,197.81
  6. Step 6: Final answer
    x = 758,520.32

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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.