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Finding the Fourth Proportional to 1,314,684, 1,814,264.10 and 711,072

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Solution

The fourth proportional to 1,314,684, 1,814,264.10 and 711,072 is: 981,279.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,684 : 1,814,264.10 = 711,072 : x
  2. Step 2: Convert to fraction form
    1,314,684/1,814,264.10 = 711,072/x
  3. Step 3: Cross multiply
    1,314,684x = 1,814,264.10 × 711,072
  4. Step 4: Simplify right side
    1,314,684x = 1,290,072,402,115.20
  5. Step 5: Solve for x
    x = 1,290,072,402,115.20/1,314,684
  6. Step 6: Final answer
    x = 981,279.46

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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.