Home / 1,396,643.28-2,094,962.76-385,762.56

Finding the Fourth Proportional to 1,396,643.28, 2,094,962.76 and 385,762.56

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Solution

The fourth proportional to 1,396,643.28, 2,094,962.76 and 385,762.56 is: 578,643.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,643.28 : 2,094,962.76 = 385,762.56 : x
  2. Step 2: Convert to fraction form
    1,396,643.28/2,094,962.76 = 385,762.56/x
  3. Step 3: Cross multiply
    1,396,643.28x = 2,094,962.76 × 385,762.56
  4. Step 4: Simplify right side
    1,396,643.28x = 808,158,197,402.27
  5. Step 5: Solve for x
    x = 808,158,197,402.27/1,396,643.28
  6. Step 6: Final answer
    x = 578,643.24

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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.