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Finding the Fourth Proportional to 1,056.42, 1,585.02 and 501.30

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Solution

The fourth proportional to 1,056.42, 1,585.02 and 501.30 is: 752.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,056.42 : 1,585.02 = 501.30 : x
  2. Step 2: Convert to fraction form
    1,056.42/1,585.02 = 501.30/x
  3. Step 3: Cross multiply
    1,056.42x = 1,585.02 × 501.30
  4. Step 4: Simplify right side
    1,056.42x = 794,570.53
  5. Step 5: Solve for x
    x = 794,570.53/1,056.42
  6. Step 6: Final answer
    x = 752.14

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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.