Home / 983,760.72-1,475,848.43-318,860.88

Finding the Fourth Proportional to 983,760.72, 1,475,848.43 and 318,860.88

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Solution

The fourth proportional to 983,760.72, 1,475,848.43 and 318,860.88 is: 478,358.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,760.72 : 1,475,848.43 = 318,860.88 : x
  2. Step 2: Convert to fraction form
    983,760.72/1,475,848.43 = 318,860.88/x
  3. Step 3: Cross multiply
    983,760.72x = 1,475,848.43 × 318,860.88
  4. Step 4: Simplify right side
    983,760.72x = 470,590,329,136.42
  5. Step 5: Solve for x
    x = 470,590,329,136.42/983,760.72
  6. Step 6: Final answer
    x = 478,358.53

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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.