Home / 1,255,802.40-1,883,703.60-1,212,499.80

Finding the Fourth Proportional to 1,255,802.40, 1,883,703.60 and 1,212,499.80

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Solution

The fourth proportional to 1,255,802.40, 1,883,703.60 and 1,212,499.80 is: 1,818,749.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,802.40 : 1,883,703.60 = 1,212,499.80 : x
  2. Step 2: Convert to fraction form
    1,255,802.40/1,883,703.60 = 1,212,499.80/x
  3. Step 3: Cross multiply
    1,255,802.40x = 1,883,703.60 × 1,212,499.80
  4. Step 4: Simplify right side
    1,255,802.40x = 2,283,990,238,259.28
  5. Step 5: Solve for x
    x = 2,283,990,238,259.28/1,255,802.40
  6. Step 6: Final answer
    x = 1,818,749.70

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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.