Home / 1,020,055.68-1,529,515.44-421,422.48

Finding the Fourth Proportional to 1,020,055.68, 1,529,515.44 and 421,422.48

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Solution

The fourth proportional to 1,020,055.68, 1,529,515.44 and 421,422.48 is: 631,899.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,055.68 : 1,529,515.44 = 421,422.48 : x
  2. Step 2: Convert to fraction form
    1,020,055.68/1,529,515.44 = 421,422.48/x
  3. Step 3: Cross multiply
    1,020,055.68x = 1,529,515.44 × 421,422.48
  4. Step 4: Simplify right side
    1,020,055.68x = 644,572,189,923.09
  5. Step 5: Solve for x
    x = 644,572,189,923.09/1,020,055.68
  6. Step 6: Final answer
    x = 631,899.03

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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.