Home / 849,374.37-1,172,187.18-486,821.57

Finding the Fourth Proportional to 849,374.37, 1,172,187.18 and 486,821.57

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Solution

The fourth proportional to 849,374.37, 1,172,187.18 and 486,821.57 is: 671,842.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,374.37 : 1,172,187.18 = 486,821.57 : x
  2. Step 2: Convert to fraction form
    849,374.37/1,172,187.18 = 486,821.57/x
  3. Step 3: Cross multiply
    849,374.37x = 1,172,187.18 × 486,821.57
  4. Step 4: Simplify right side
    849,374.37x = 570,645,997,440.54
  5. Step 5: Solve for x
    x = 570,645,997,440.54/849,374.37
  6. Step 6: Final answer
    x = 671,842.73

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1.5x scale

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.