Home / 920,278.80-1,380,145.80-414,547.44

Finding the Fourth Proportional to 920,278.80, 1,380,145.80 and 414,547.44

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Solution

The fourth proportional to 920,278.80, 1,380,145.80 and 414,547.44 is: 621,698.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,278.80 : 1,380,145.80 = 414,547.44 : x
  2. Step 2: Convert to fraction form
    920,278.80/1,380,145.80 = 414,547.44/x
  3. Step 3: Cross multiply
    920,278.80x = 1,380,145.80 × 414,547.44
  4. Step 4: Simplify right side
    920,278.80x = 572,135,908,216.75
  5. Step 5: Solve for x
    x = 572,135,908,216.75/920,278.80
  6. Step 6: Final answer
    x = 621,698.46

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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.