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Finding the Fourth Proportional to 849,351, 1,172,152.88 and 486,835.26

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Solution

The fourth proportional to 849,351, 1,172,152.88 and 486,835.26 is: 671,860.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,351 : 1,172,152.88 = 486,835.26 : x
  2. Step 2: Convert to fraction form
    849,351/1,172,152.88 = 486,835.26/x
  3. Step 3: Cross multiply
    849,351x = 1,172,152.88 × 486,835.26
  4. Step 4: Simplify right side
    849,351x = 570,645,352,094.55
  5. Step 5: Solve for x
    x = 570,645,352,094.55/849,351
  6. Step 6: Final answer
    x = 671,860.46

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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.