Home / 788,661.60-1,182,992.40-220,041.60

Finding the Fourth Proportional to 788,661.60, 1,182,992.40 and 220,041.60

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Solution

The fourth proportional to 788,661.60, 1,182,992.40 and 220,041.60 is: 330,062.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,661.60 : 1,182,992.40 = 220,041.60 : x
  2. Step 2: Convert to fraction form
    788,661.60/1,182,992.40 = 220,041.60/x
  3. Step 3: Cross multiply
    788,661.60x = 1,182,992.40 × 220,041.60
  4. Step 4: Simplify right side
    788,661.60x = 260,307,540,483.84
  5. Step 5: Solve for x
    x = 260,307,540,483.84/788,661.60
  6. Step 6: Final answer
    x = 330,062.40

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Double scale
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Similar ratio
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1.5x scale

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.