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Finding the Fourth Proportional to 486,027.60, 729,041.40 and 276,075.60

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Solution

The fourth proportional to 486,027.60, 729,041.40 and 276,075.60 is: 414,113.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,027.60 : 729,041.40 = 276,075.60 : x
  2. Step 2: Convert to fraction form
    486,027.60/729,041.40 = 276,075.60/x
  3. Step 3: Cross multiply
    486,027.60x = 729,041.40 × 276,075.60
  4. Step 4: Simplify right side
    486,027.60x = 201,270,541,929.84
  5. Step 5: Solve for x
    x = 201,270,541,929.84/486,027.60
  6. Step 6: Final answer
    x = 414,113.40

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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.