Home / 389,869.60-584,804.40-284,893.60

Finding the Fourth Proportional to 389,869.60, 584,804.40 and 284,893.60

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Solution

The fourth proportional to 389,869.60, 584,804.40 and 284,893.60 is: 427,340.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,869.60 : 584,804.40 = 284,893.60 : x
  2. Step 2: Convert to fraction form
    389,869.60/584,804.40 = 284,893.60/x
  3. Step 3: Cross multiply
    389,869.60x = 584,804.40 × 284,893.60
  4. Step 4: Simplify right side
    389,869.60x = 166,607,030,811.84
  5. Step 5: Solve for x
    x = 166,607,030,811.84/389,869.60
  6. Step 6: Final answer
    x = 427,340.40

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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.