Home / 788,443.40-1,182,405.90-289,742.60

Finding the Fourth Proportional to 788,443.40, 1,182,405.90 and 289,742.60

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Solution

The fourth proportional to 788,443.40, 1,182,405.90 and 289,742.60 is: 434,518.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,443.40 : 1,182,405.90 = 289,742.60 : x
  2. Step 2: Convert to fraction form
    788,443.40/1,182,405.90 = 289,742.60/x
  3. Step 3: Cross multiply
    788,443.40x = 1,182,405.90 × 289,742.60
  4. Step 4: Simplify right side
    788,443.40x = 342,593,359,721.34
  5. Step 5: Solve for x
    x = 342,593,359,721.34/788,443.40
  6. Step 6: Final answer
    x = 434,518.65

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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.