Home / 830,720.83-1,146,777.44-486,508.90

Finding the Fourth Proportional to 830,720.83, 1,146,777.44 and 486,508.90

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Solution

The fourth proportional to 830,720.83, 1,146,777.44 and 486,508.90 is: 671,606.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,720.83 : 1,146,777.44 = 486,508.90 : x
  2. Step 2: Convert to fraction form
    830,720.83/1,146,777.44 = 486,508.90/x
  3. Step 3: Cross multiply
    830,720.83x = 1,146,777.44 × 486,508.90
  4. Step 4: Simplify right side
    830,720.83x = 557,917,430,879.22
  5. Step 5: Solve for x
    x = 557,917,430,879.22/830,720.83
  6. Step 6: Final answer
    x = 671,606.41

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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.