Home / 788,595.60-1,182,115.80-388,909.20

Finding the Fourth Proportional to 788,595.60, 1,182,115.80 and 388,909.20

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Solution

The fourth proportional to 788,595.60, 1,182,115.80 and 388,909.20 is: 582,980.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,595.60 : 1,182,115.80 = 388,909.20 : x
  2. Step 2: Convert to fraction form
    788,595.60/1,182,115.80 = 388,909.20/x
  3. Step 3: Cross multiply
    788,595.60x = 1,182,115.80 × 388,909.20
  4. Step 4: Simplify right side
    788,595.60x = 459,735,710,085.36
  5. Step 5: Solve for x
    x = 459,735,710,085.36/788,595.60
  6. Step 6: Final answer
    x = 582,980.31

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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.