Home / 1,396,540-2,094,931.48-385,663.28

Finding the Fourth Proportional to 1,396,540, 2,094,931.48 and 385,663.28

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Solution

The fourth proportional to 1,396,540, 2,094,931.48 and 385,663.28 is: 578,528.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,540 : 2,094,931.48 = 385,663.28 : x
  2. Step 2: Convert to fraction form
    1,396,540/2,094,931.48 = 385,663.28/x
  3. Step 3: Cross multiply
    1,396,540x = 2,094,931.48 × 385,663.28
  4. Step 4: Simplify right side
    1,396,540x = 807,938,145,952.06
  5. Step 5: Solve for x
    x = 807,938,145,952.06/1,396,540
  6. Step 6: Final answer
    x = 578,528.47

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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.