Home / 1,030.20-1,545.59-336.79

Finding the Fourth Proportional to 1,030.20, 1,545.59 and 336.79

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Solution

The fourth proportional to 1,030.20, 1,545.59 and 336.79 is: 505.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030.20 : 1,545.59 = 336.79 : x
  2. Step 2: Convert to fraction form
    1,030.20/1,545.59 = 336.79/x
  3. Step 3: Cross multiply
    1,030.20x = 1,545.59 × 336.79
  4. Step 4: Simplify right side
    1,030.20x = 520,539.26
  5. Step 5: Solve for x
    x = 520,539.26/1,030.20
  6. Step 6: Final answer
    x = 505.28

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Double scale
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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.