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Finding the Fourth Proportional to 705.47, 973.56 and 410.76

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Solution

The fourth proportional to 705.47, 973.56 and 410.76 is: 566.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    705.47 : 973.56 = 410.76 : x
  2. Step 2: Convert to fraction form
    705.47/973.56 = 410.76/x
  3. Step 3: Cross multiply
    705.47x = 973.56 × 410.76
  4. Step 4: Simplify right side
    705.47x = 399,899.51
  5. Step 5: Solve for x
    x = 399,899.51/705.47
  6. Step 6: Final answer
    x = 566.86

Related Problems

Find fourth proportional to 352.73, 486.78 and 205.38
Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.