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Finding the Fourth Proportional to 450,019.20, 675,028.80 and 401,030.40

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Solution

The fourth proportional to 450,019.20, 675,028.80 and 401,030.40 is: 601,545.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,019.20 : 675,028.80 = 401,030.40 : x
  2. Step 2: Convert to fraction form
    450,019.20/675,028.80 = 401,030.40/x
  3. Step 3: Cross multiply
    450,019.20x = 675,028.80 × 401,030.40
  4. Step 4: Simplify right side
    450,019.20x = 270,707,069,675.52
  5. Step 5: Solve for x
    x = 270,707,069,675.52/450,019.20
  6. Step 6: Final answer
    x = 601,545.60

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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.