Home / 718,365.75-1,077,554.03-318,899.13

Finding the Fourth Proportional to 718,365.75, 1,077,554.03 and 318,899.13

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Solution

The fourth proportional to 718,365.75, 1,077,554.03 and 318,899.13 is: 478,351.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,365.75 : 1,077,554.03 = 318,899.13 : x
  2. Step 2: Convert to fraction form
    718,365.75/1,077,554.03 = 318,899.13/x
  3. Step 3: Cross multiply
    718,365.75x = 1,077,554.03 × 318,899.13
  4. Step 4: Simplify right side
    718,365.75x = 343,631,041,100.50
  5. Step 5: Solve for x
    x = 343,631,041,100.50/718,365.75
  6. Step 6: Final answer
    x = 478,351.09

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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.