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Finding the Fourth Proportional to 550,030.40, 825,823.20 and 340,078.40

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Solution

The fourth proportional to 550,030.40, 825,823.20 and 340,078.40 is: 510,598.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,030.40 : 825,823.20 = 340,078.40 : x
  2. Step 2: Convert to fraction form
    550,030.40/825,823.20 = 340,078.40/x
  3. Step 3: Cross multiply
    550,030.40x = 825,823.20 × 340,078.40
  4. Step 4: Simplify right side
    550,030.40x = 280,844,632,538.88
  5. Step 5: Solve for x
    x = 280,844,632,538.88/550,030.40
  6. Step 6: Final answer
    x = 510,598.38

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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.