Home / 918,075.60-1,376,165.70-412,878.60

Finding the Fourth Proportional to 918,075.60, 1,376,165.70 and 412,878.60

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Solution

The fourth proportional to 918,075.60, 1,376,165.70 and 412,878.60 is: 618,891.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,075.60 : 1,376,165.70 = 412,878.60 : x
  2. Step 2: Convert to fraction form
    918,075.60/1,376,165.70 = 412,878.60/x
  3. Step 3: Cross multiply
    918,075.60x = 1,376,165.70 × 412,878.60
  4. Step 4: Simplify right side
    918,075.60x = 568,189,367,584.02
  5. Step 5: Solve for x
    x = 568,189,367,584.02/918,075.60
  6. Step 6: Final answer
    x = 618,891.70

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1.5x scale

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.