Home / 854,026.93-1,178,436.76-486,513.73

Finding the Fourth Proportional to 854,026.93, 1,178,436.76 and 486,513.73

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Solution

The fourth proportional to 854,026.93, 1,178,436.76 and 486,513.73 is: 671,320.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,026.93 : 1,178,436.76 = 486,513.73 : x
  2. Step 2: Convert to fraction form
    854,026.93/1,178,436.76 = 486,513.73/x
  3. Step 3: Cross multiply
    854,026.93x = 1,178,436.76 × 486,513.73
  4. Step 4: Simplify right side
    854,026.93x = 573,325,663,676.72
  5. Step 5: Solve for x
    x = 573,325,663,676.72/854,026.93
  6. Step 6: Final answer
    x = 671,320.36

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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.