Home / 820,247.08-1,131,944.10-457,686.22

Finding the Fourth Proportional to 820,247.08, 1,131,944.10 and 457,686.22

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Solution

The fourth proportional to 820,247.08, 1,131,944.10 and 457,686.22 is: 631,608.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,247.08 : 1,131,944.10 = 457,686.22 : x
  2. Step 2: Convert to fraction form
    820,247.08/1,131,944.10 = 457,686.22/x
  3. Step 3: Cross multiply
    820,247.08x = 1,131,944.10 × 457,686.22
  4. Step 4: Simplify right side
    820,247.08x = 518,075,211,834.12
  5. Step 5: Solve for x
    x = 518,075,211,834.12/820,247.08
  6. Step 6: Final answer
    x = 631,608.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.