Home / 1,038.79-1,433.50-566.70

Finding the Fourth Proportional to 1,038.79, 1,433.50 and 566.70

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Solution

The fourth proportional to 1,038.79, 1,433.50 and 566.70 is: 782.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038.79 : 1,433.50 = 566.70 : x
  2. Step 2: Convert to fraction form
    1,038.79/1,433.50 = 566.70/x
  3. Step 3: Cross multiply
    1,038.79x = 1,433.50 × 566.70
  4. Step 4: Simplify right side
    1,038.79x = 812,357.66
  5. Step 5: Solve for x
    x = 812,357.66/1,038.79
  6. Step 6: Final answer
    x = 782.03

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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.