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Finding the Fourth Proportional to 970.59, 1,455.95 and 583.23

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Solution

The fourth proportional to 970.59, 1,455.95 and 583.23 is: 874.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    970.59 : 1,455.95 = 583.23 : x
  2. Step 2: Convert to fraction form
    970.59/1,455.95 = 583.23/x
  3. Step 3: Cross multiply
    970.59x = 1,455.95 × 583.23
  4. Step 4: Simplify right side
    970.59x = 849,153.72
  5. Step 5: Solve for x
    x = 849,153.72/970.59
  6. Step 6: Final answer
    x = 874.88

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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.