Home / 991,128.42-1,367,641.08-583,140.42

Finding the Fourth Proportional to 991,128.42, 1,367,641.08 and 583,140.42

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Solution

The fourth proportional to 991,128.42, 1,367,641.08 and 583,140.42 is: 804,665.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,128.42 : 1,367,641.08 = 583,140.42 : x
  2. Step 2: Convert to fraction form
    991,128.42/1,367,641.08 = 583,140.42/x
  3. Step 3: Cross multiply
    991,128.42x = 1,367,641.08 × 583,140.42
  4. Step 4: Simplify right side
    991,128.42x = 797,526,793,800.45
  5. Step 5: Solve for x
    x = 797,526,793,800.45/991,128.42
  6. Step 6: Final answer
    x = 804,665.45

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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.