Home / 1,280,670.79-1,916,549.77-794,125.50

Finding the Fourth Proportional to 1,280,670.79, 1,916,549.77 and 794,125.50

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Solution

The fourth proportional to 1,280,670.79, 1,916,549.77 and 794,125.50 is: 1,188,424.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,670.79 : 1,916,549.77 = 794,125.50 : x
  2. Step 2: Convert to fraction form
    1,280,670.79/1,916,549.77 = 794,125.50/x
  3. Step 3: Cross multiply
    1,280,670.79x = 1,916,549.77 × 794,125.50
  4. Step 4: Simplify right side
    1,280,670.79x = 1,521,981,044,376.14
  5. Step 5: Solve for x
    x = 1,521,981,044,376.14/1,280,670.79
  6. Step 6: Final answer
    x = 1,188,424.89

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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.