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Finding the Fourth Proportional to 1,018.95, 1,526.49 and 585.18

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Solution

The fourth proportional to 1,018.95, 1,526.49 and 585.18 is: 876.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018.95 : 1,526.49 = 585.18 : x
  2. Step 2: Convert to fraction form
    1,018.95/1,526.49 = 585.18/x
  3. Step 3: Cross multiply
    1,018.95x = 1,526.49 × 585.18
  4. Step 4: Simplify right side
    1,018.95x = 893,271.42
  5. Step 5: Solve for x
    x = 893,271.42/1,018.95
  6. Step 6: Final answer
    x = 876.66

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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.