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Finding the Fourth Proportional to 973.55, 1,460.36 and 486.43

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Solution

The fourth proportional to 973.55, 1,460.36 and 486.43 is: 729.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    973.55 : 1,460.36 = 486.43 : x
  2. Step 2: Convert to fraction form
    973.55/1,460.36 = 486.43/x
  3. Step 3: Cross multiply
    973.55x = 1,460.36 × 486.43
  4. Step 4: Simplify right side
    973.55x = 710,360.48
  5. Step 5: Solve for x
    x = 710,360.48/973.55
  6. Step 6: Final answer
    x = 729.66

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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.