Home / 849,103.95-1,171,930.77-486,770.90

Finding the Fourth Proportional to 849,103.95, 1,171,930.77 and 486,770.90

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Solution

The fourth proportional to 849,103.95, 1,171,930.77 and 486,770.90 is: 671,839.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,103.95 : 1,171,930.77 = 486,770.90 : x
  2. Step 2: Convert to fraction form
    849,103.95/1,171,930.77 = 486,770.90/x
  3. Step 3: Cross multiply
    849,103.95x = 1,171,930.77 × 486,770.90
  4. Step 4: Simplify right side
    849,103.95x = 570,461,793,216.74
  5. Step 5: Solve for x
    x = 570,461,793,216.74/849,103.95
  6. Step 6: Final answer
    x = 671,839.76

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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.