Home / 1,991,807.10-2,988,682.65-926,300.70

Finding the Fourth Proportional to 1,991,807.10, 2,988,682.65 and 926,300.70

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Solution

The fourth proportional to 1,991,807.10, 2,988,682.65 and 926,300.70 is: 1,389,903.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,807.10 : 2,988,682.65 = 926,300.70 : x
  2. Step 2: Convert to fraction form
    1,991,807.10/2,988,682.65 = 926,300.70/x
  3. Step 3: Cross multiply
    1,991,807.10x = 2,988,682.65 × 926,300.70
  4. Step 4: Simplify right side
    1,991,807.10x = 2,768,418,830,772.86
  5. Step 5: Solve for x
    x = 2,768,418,830,772.86/1,991,807.10
  6. Step 6: Final answer
    x = 1,389,903.08

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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.