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Finding the Fourth Proportional to 555,649.58, 766,798.77 and 301,000.77

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Solution

The fourth proportional to 555,649.58, 766,798.77 and 301,000.77 is: 415,382.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,649.58 : 766,798.77 = 301,000.77 : x
  2. Step 2: Convert to fraction form
    555,649.58/766,798.77 = 301,000.77/x
  3. Step 3: Cross multiply
    555,649.58x = 766,798.77 × 301,000.77
  4. Step 4: Simplify right side
    555,649.58x = 230,807,020,205.05
  5. Step 5: Solve for x
    x = 230,807,020,205.05/555,649.58
  6. Step 6: Final answer
    x = 415,382.34

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Double scale
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Similar ratio
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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.