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Finding the Fourth Proportional to 838,081.80, 1,255,740.30 and 713,665.80

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Solution

The fourth proportional to 838,081.80, 1,255,740.30 and 713,665.80 is: 1,069,321.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,081.80 : 1,255,740.30 = 713,665.80 : x
  2. Step 2: Convert to fraction form
    838,081.80/1,255,740.30 = 713,665.80/x
  3. Step 3: Cross multiply
    838,081.80x = 1,255,740.30 × 713,665.80
  4. Step 4: Simplify right side
    838,081.80x = 896,178,905,791.74
  5. Step 5: Solve for x
    x = 896,178,905,791.74/838,081.80
  6. Step 6: Final answer
    x = 1,069,321.52

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1.5x scale

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.