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Finding the Fourth Proportional to 804,907.90, 1,209,694.65 and 702,264.70

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Solution

The fourth proportional to 804,907.90, 1,209,694.65 and 702,264.70 is: 1,055,432.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,907.90 : 1,209,694.65 = 702,264.70 : x
  2. Step 2: Convert to fraction form
    804,907.90/1,209,694.65 = 702,264.70/x
  3. Step 3: Cross multiply
    804,907.90x = 1,209,694.65 × 702,264.70
  4. Step 4: Simplify right side
    804,907.90x = 849,525,850,473.86
  5. Step 5: Solve for x
    x = 849,525,850,473.86/804,907.90
  6. Step 6: Final answer
    x = 1,055,432.37

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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.