Home / 554,204.21-764,801.38-299,555.40

Finding the Fourth Proportional to 554,204.21, 764,801.38 and 299,555.40

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Solution

The fourth proportional to 554,204.21, 764,801.38 and 299,555.40 is: 413,386.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,204.21 : 764,801.38 = 299,555.40 : x
  2. Step 2: Convert to fraction form
    554,204.21/764,801.38 = 299,555.40/x
  3. Step 3: Cross multiply
    554,204.21x = 764,801.38 × 299,555.40
  4. Step 4: Simplify right side
    554,204.21x = 229,100,381,808.68
  5. Step 5: Solve for x
    x = 229,100,381,808.68/554,204.21
  6. Step 6: Final answer
    x = 413,386.22

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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.