Home / 899,190.32-1,240,868.16-491,283.40

Finding the Fourth Proportional to 899,190.32, 1,240,868.16 and 491,283.40

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Solution

The fourth proportional to 899,190.32, 1,240,868.16 and 491,283.40 is: 677,963.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,190.32 : 1,240,868.16 = 491,283.40 : x
  2. Step 2: Convert to fraction form
    899,190.32/1,240,868.16 = 491,283.40/x
  3. Step 3: Cross multiply
    899,190.32x = 1,240,868.16 × 491,283.40
  4. Step 4: Simplify right side
    899,190.32x = 609,617,928,596.54
  5. Step 5: Solve for x
    x = 609,617,928,596.54/899,190.32
  6. Step 6: Final answer
    x = 677,963.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.