Home / 1,677,640.16-2,315,371.74-989,506.64

Finding the Fourth Proportional to 1,677,640.16, 2,315,371.74 and 989,506.64

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Solution

The fourth proportional to 1,677,640.16, 2,315,371.74 and 989,506.64 is: 1,365,653.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,677,640.16 : 2,315,371.74 = 989,506.64 : x
  2. Step 2: Convert to fraction form
    1,677,640.16/2,315,371.74 = 989,506.64/x
  3. Step 3: Cross multiply
    1,677,640.16x = 2,315,371.74 × 989,506.64
  4. Step 4: Simplify right side
    1,677,640.16x = 2,291,075,710,798.35
  5. Step 5: Solve for x
    x = 2,291,075,710,798.35/1,677,640.16
  6. Step 6: Final answer
    x = 1,365,653.83

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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.