Home / 779,581.95-1,167,623.33-639,613.95

Finding the Fourth Proportional to 779,581.95, 1,167,623.33 and 639,613.95

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Solution

The fourth proportional to 779,581.95, 1,167,623.33 and 639,613.95 is: 957,985.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,581.95 : 1,167,623.33 = 639,613.95 : x
  2. Step 2: Convert to fraction form
    779,581.95/1,167,623.33 = 639,613.95/x
  3. Step 3: Cross multiply
    779,581.95x = 1,167,623.33 × 639,613.95
  4. Step 4: Simplify right side
    779,581.95x = 746,828,167,015.38
  5. Step 5: Solve for x
    x = 746,828,167,015.38/779,581.95
  6. Step 6: Final answer
    x = 957,985.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.