Home / 816,941.60-1,225,250.56-776,434.40

Finding the Fourth Proportional to 816,941.60, 1,225,250.56 and 776,434.40

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Solution

The fourth proportional to 816,941.60, 1,225,250.56 and 776,434.40 is: 1,164,497.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,941.60 : 1,225,250.56 = 776,434.40 : x
  2. Step 2: Convert to fraction form
    816,941.60/1,225,250.56 = 776,434.40/x
  3. Step 3: Cross multiply
    816,941.60x = 1,225,250.56 × 776,434.40
  4. Step 4: Simplify right side
    816,941.60x = 951,326,683,403.26
  5. Step 5: Solve for x
    x = 951,326,683,403.26/816,941.60
  6. Step 6: Final answer
    x = 1,164,497.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.