Home / 940,409.15-1,298,161.90-634,899.35

Finding the Fourth Proportional to 940,409.15, 1,298,161.90 and 634,899.35

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Solution

The fourth proportional to 940,409.15, 1,298,161.90 and 634,899.35 is: 876,429.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,409.15 : 1,298,161.90 = 634,899.35 : x
  2. Step 2: Convert to fraction form
    940,409.15/1,298,161.90 = 634,899.35/x
  3. Step 3: Cross multiply
    940,409.15x = 1,298,161.90 × 634,899.35
  4. Step 4: Simplify right side
    940,409.15x = 824,202,146,504.77
  5. Step 5: Solve for x
    x = 824,202,146,504.77/940,409.15
  6. Step 6: Final answer
    x = 876,429.31

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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.