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Finding the Fourth Proportional to 806,673.60, 1,210,010.40 and 680,702.40

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Solution

The fourth proportional to 806,673.60, 1,210,010.40 and 680,702.40 is: 1,021,053.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,673.60 : 1,210,010.40 = 680,702.40 : x
  2. Step 2: Convert to fraction form
    806,673.60/1,210,010.40 = 680,702.40/x
  3. Step 3: Cross multiply
    806,673.60x = 1,210,010.40 × 680,702.40
  4. Step 4: Simplify right side
    806,673.60x = 823,656,983,304.96
  5. Step 5: Solve for x
    x = 823,656,983,304.96/806,673.60
  6. Step 6: Final answer
    x = 1,021,053.60

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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.