Home / 557,439.24-769,266.90-302,790.48

Finding the Fourth Proportional to 557,439.24, 769,266.90 and 302,790.48

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Solution

The fourth proportional to 557,439.24, 769,266.90 and 302,790.48 is: 417,851.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,439.24 : 769,266.90 = 302,790.48 : x
  2. Step 2: Convert to fraction form
    557,439.24/769,266.90 = 302,790.48/x
  3. Step 3: Cross multiply
    557,439.24x = 769,266.90 × 302,790.48
  4. Step 4: Simplify right side
    557,439.24x = 232,926,693,899.11
  5. Step 5: Solve for x
    x = 232,926,693,899.11/557,439.24
  6. Step 6: Final answer
    x = 417,851.27

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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.