Home / 849,242.12-1,171,986.40-486,735.92

Finding the Fourth Proportional to 849,242.12, 1,171,986.40 and 486,735.92

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Solution

The fourth proportional to 849,242.12, 1,171,986.40 and 486,735.92 is: 671,714.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,242.12 : 1,171,986.40 = 486,735.92 : x
  2. Step 2: Convert to fraction form
    849,242.12/1,171,986.40 = 486,735.92/x
  3. Step 3: Cross multiply
    849,242.12x = 1,171,986.40 × 486,735.92
  4. Step 4: Simplify right side
    849,242.12x = 570,447,878,631.49
  5. Step 5: Solve for x
    x = 570,447,878,631.49/849,242.12
  6. Step 6: Final answer
    x = 671,714.07

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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.