Home / 940,409.79-1,298,162.76-634,899.98

Finding the Fourth Proportional to 940,409.79, 1,298,162.76 and 634,899.98

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Solution

The fourth proportional to 940,409.79, 1,298,162.76 and 634,899.98 is: 876,430.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,409.79 : 1,298,162.76 = 634,899.98 : x
  2. Step 2: Convert to fraction form
    940,409.79/1,298,162.76 = 634,899.98/x
  3. Step 3: Cross multiply
    940,409.79x = 1,298,162.76 × 634,899.98
  4. Step 4: Simplify right side
    940,409.79x = 824,203,503,869.93
  5. Step 5: Solve for x
    x = 824,203,503,869.93/940,409.79
  6. Step 6: Final answer
    x = 876,430.16

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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.