Home / 788,765.40-1,183,148.10-220,145.40

Finding the Fourth Proportional to 788,765.40, 1,183,148.10 and 220,145.40

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Solution

The fourth proportional to 788,765.40, 1,183,148.10 and 220,145.40 is: 330,218.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,765.40 : 1,183,148.10 = 220,145.40 : x
  2. Step 2: Convert to fraction form
    788,765.40/1,183,148.10 = 220,145.40/x
  3. Step 3: Cross multiply
    788,765.40x = 1,183,148.10 × 220,145.40
  4. Step 4: Simplify right side
    788,765.40x = 260,464,611,733.74
  5. Step 5: Solve for x
    x = 260,464,611,733.74/788,765.40
  6. Step 6: Final answer
    x = 330,218.10

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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.