Home / 820,247.39-1,131,944.53-457,686.53

Finding the Fourth Proportional to 820,247.39, 1,131,944.53 and 457,686.53

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Solution

The fourth proportional to 820,247.39, 1,131,944.53 and 457,686.53 is: 631,609.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,247.39 : 1,131,944.53 = 457,686.53 : x
  2. Step 2: Convert to fraction form
    820,247.39/1,131,944.53 = 457,686.53/x
  3. Step 3: Cross multiply
    820,247.39x = 1,131,944.53 × 457,686.53
  4. Step 4: Simplify right side
    820,247.39x = 518,075,764,088.18
  5. Step 5: Solve for x
    x = 518,075,764,088.18/820,247.39
  6. Step 6: Final answer
    x = 631,609.16

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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.