Home / 788,893.60-1,182,562.80-389,207.20

Finding the Fourth Proportional to 788,893.60, 1,182,562.80 and 389,207.20

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Solution

The fourth proportional to 788,893.60, 1,182,562.80 and 389,207.20 is: 583,427.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,893.60 : 1,182,562.80 = 389,207.20 : x
  2. Step 2: Convert to fraction form
    788,893.60/1,182,562.80 = 389,207.20/x
  3. Step 3: Cross multiply
    788,893.60x = 1,182,562.80 × 389,207.20
  4. Step 4: Simplify right side
    788,893.60x = 460,261,956,212.16
  5. Step 5: Solve for x
    x = 460,261,956,212.16/788,893.60
  6. Step 6: Final answer
    x = 583,427.16

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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.