Home / 1,148,599.20-1,722,975.60-390,429.60

Finding the Fourth Proportional to 1,148,599.20, 1,722,975.60 and 390,429.60

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Solution

The fourth proportional to 1,148,599.20, 1,722,975.60 and 390,429.60 is: 585,670.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148,599.20 : 1,722,975.60 = 390,429.60 : x
  2. Step 2: Convert to fraction form
    1,148,599.20/1,722,975.60 = 390,429.60/x
  3. Step 3: Cross multiply
    1,148,599.20x = 1,722,975.60 × 390,429.60
  4. Step 4: Simplify right side
    1,148,599.20x = 672,700,674,317.76
  5. Step 5: Solve for x
    x = 672,700,674,317.76/1,148,599.20
  6. Step 6: Final answer
    x = 585,670.51

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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.