Home / 1,336,749.70-2,005,124.55-390,216.10

Finding the Fourth Proportional to 1,336,749.70, 2,005,124.55 and 390,216.10

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Solution

The fourth proportional to 1,336,749.70, 2,005,124.55 and 390,216.10 is: 585,324.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336,749.70 : 2,005,124.55 = 390,216.10 : x
  2. Step 2: Convert to fraction form
    1,336,749.70/2,005,124.55 = 390,216.10/x
  3. Step 3: Cross multiply
    1,336,749.70x = 2,005,124.55 × 390,216.10
  4. Step 4: Simplify right side
    1,336,749.70x = 782,431,881,915.26
  5. Step 5: Solve for x
    x = 782,431,881,915.26/1,336,749.70
  6. Step 6: Final answer
    x = 585,324.15

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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.