Home / 821,288.80-1,133,376.24-463,592.80

Finding the Fourth Proportional to 821,288.80, 1,133,376.24 and 463,592.80

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Solution

The fourth proportional to 821,288.80, 1,133,376.24 and 463,592.80 is: 639,756.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,288.80 : 1,133,376.24 = 463,592.80 : x
  2. Step 2: Convert to fraction form
    821,288.80/1,133,376.24 = 463,592.80/x
  3. Step 3: Cross multiply
    821,288.80x = 1,133,376.24 × 463,592.80
  4. Step 4: Simplify right side
    821,288.80x = 525,425,064,555.07
  5. Step 5: Solve for x
    x = 525,425,064,555.07/821,288.80
  6. Step 6: Final answer
    x = 639,756.76

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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.