Home / 1,019,982.40-1,529,973.60-420,744.40

Finding the Fourth Proportional to 1,019,982.40, 1,529,973.60 and 420,744.40

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Solution

The fourth proportional to 1,019,982.40, 1,529,973.60 and 420,744.40 is: 631,116.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,982.40 : 1,529,973.60 = 420,744.40 : x
  2. Step 2: Convert to fraction form
    1,019,982.40/1,529,973.60 = 420,744.40/x
  3. Step 3: Cross multiply
    1,019,982.40x = 1,529,973.60 × 420,744.40
  4. Step 4: Simplify right side
    1,019,982.40x = 643,727,824,347.84
  5. Step 5: Solve for x
    x = 643,727,824,347.84/1,019,982.40
  6. Step 6: Final answer
    x = 631,116.60

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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.