Home / 1,221,917.40-1,833,094.80-512,017.20

Finding the Fourth Proportional to 1,221,917.40, 1,833,094.80 and 512,017.20

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Solution

The fourth proportional to 1,221,917.40, 1,833,094.80 and 512,017.20 is: 768,117.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,917.40 : 1,833,094.80 = 512,017.20 : x
  2. Step 2: Convert to fraction form
    1,221,917.40/1,833,094.80 = 512,017.20/x
  3. Step 3: Cross multiply
    1,221,917.40x = 1,833,094.80 × 512,017.20
  4. Step 4: Simplify right side
    1,221,917.40x = 938,576,066,830.56
  5. Step 5: Solve for x
    x = 938,576,066,830.56/1,221,917.40
  6. Step 6: Final answer
    x = 768,117.44

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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.