Home / 1,050.15-1,576.29-434.23

Finding the Fourth Proportional to 1,050.15, 1,576.29 and 434.23

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Solution

The fourth proportional to 1,050.15, 1,576.29 and 434.23 is: 651.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,050.15 : 1,576.29 = 434.23 : x
  2. Step 2: Convert to fraction form
    1,050.15/1,576.29 = 434.23/x
  3. Step 3: Cross multiply
    1,050.15x = 1,576.29 × 434.23
  4. Step 4: Simplify right side
    1,050.15x = 684,472.41
  5. Step 5: Solve for x
    x = 684,472.41/1,050.15
  6. Step 6: Final answer
    x = 651.79

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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.