Home / 1,397,140.40-2,095,710.60-386,260.40

Finding the Fourth Proportional to 1,397,140.40, 2,095,710.60 and 386,260.40

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Solution

The fourth proportional to 1,397,140.40, 2,095,710.60 and 386,260.40 is: 579,390.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,140.40 : 2,095,710.60 = 386,260.40 : x
  2. Step 2: Convert to fraction form
    1,397,140.40/2,095,710.60 = 386,260.40/x
  3. Step 3: Cross multiply
    1,397,140.40x = 2,095,710.60 × 386,260.40
  4. Step 4: Simplify right side
    1,397,140.40x = 809,490,014,640.24
  5. Step 5: Solve for x
    x = 809,490,014,640.24/1,397,140.40
  6. Step 6: Final answer
    x = 579,390.60

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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.