Home / 1,988,924.40-2,985,988.32-1,180,784.16

Finding the Fourth Proportional to 1,988,924.40, 2,985,988.32 and 1,180,784.16

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Solution

The fourth proportional to 1,988,924.40, 2,985,988.32 and 1,180,784.16 is: 1,772,720.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,924.40 : 2,985,988.32 = 1,180,784.16 : x
  2. Step 2: Convert to fraction form
    1,988,924.40/2,985,988.32 = 1,180,784.16/x
  3. Step 3: Cross multiply
    1,988,924.40x = 2,985,988.32 × 1,180,784.16
  4. Step 4: Simplify right side
    1,988,924.40x = 3,525,807,710,201.01
  5. Step 5: Solve for x
    x = 3,525,807,710,201.01/1,988,924.40
  6. Step 6: Final answer
    x = 1,772,720.83

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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.