Home / 1,989,529.80-2,984,513.40-727,630.80

Finding the Fourth Proportional to 1,989,529.80, 2,984,513.40 and 727,630.80

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Solution

The fourth proportional to 1,989,529.80, 2,984,513.40 and 727,630.80 is: 1,091,526.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,529.80 : 2,984,513.40 = 727,630.80 : x
  2. Step 2: Convert to fraction form
    1,989,529.80/2,984,513.40 = 727,630.80/x
  3. Step 3: Cross multiply
    1,989,529.80x = 2,984,513.40 × 727,630.80
  4. Step 4: Simplify right side
    1,989,529.80x = 2,171,623,872,852.72
  5. Step 5: Solve for x
    x = 2,171,623,872,852.72/1,989,529.80
  6. Step 6: Final answer
    x = 1,091,526.19

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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.