Home / 790,707.61-1,186,688.76-411,736.15

Finding the Fourth Proportional to 790,707.61, 1,186,688.76 and 411,736.15

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Solution

The fourth proportional to 790,707.61, 1,186,688.76 and 411,736.15 is: 617,930.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,707.61 : 1,186,688.76 = 411,736.15 : x
  2. Step 2: Convert to fraction form
    790,707.61/1,186,688.76 = 411,736.15/x
  3. Step 3: Cross multiply
    790,707.61x = 1,186,688.76 × 411,736.15
  4. Step 4: Simplify right side
    790,707.61x = 488,602,661,290.67
  5. Step 5: Solve for x
    x = 488,602,661,290.67/790,707.61
  6. Step 6: Final answer
    x = 617,930.90

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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.