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Finding the Fourth Proportional to 1,010.77, 1,395.00 and 612.59

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Solution

The fourth proportional to 1,010.77, 1,395.00 and 612.59 is: 845.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010.77 : 1,395.00 = 612.59 : x
  2. Step 2: Convert to fraction form
    1,010.77/1,395.00 = 612.59/x
  3. Step 3: Cross multiply
    1,010.77x = 1,395.00 × 612.59
  4. Step 4: Simplify right side
    1,010.77x = 854,562.77
  5. Step 5: Solve for x
    x = 854,562.77/1,010.77
  6. Step 6: Final answer
    x = 845.46

Related Problems

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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.