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Finding the Fourth Proportional to 1,050.48, 1,574.81 and 530.05

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Solution

The fourth proportional to 1,050.48, 1,574.81 and 530.05 is: 794.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,050.48 : 1,574.81 = 530.05 : x
  2. Step 2: Convert to fraction form
    1,050.48/1,574.81 = 530.05/x
  3. Step 3: Cross multiply
    1,050.48x = 1,574.81 × 530.05
  4. Step 4: Simplify right side
    1,050.48x = 834,717.52
  5. Step 5: Solve for x
    x = 834,717.52/1,050.48
  6. Step 6: Final answer
    x = 794.61

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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.