Home / 849,076.85-1,171,756.64-486,570.76

Finding the Fourth Proportional to 849,076.85, 1,171,756.64 and 486,570.76

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Solution

The fourth proportional to 849,076.85, 1,171,756.64 and 486,570.76 is: 671,485.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,076.85 : 1,171,756.64 = 486,570.76 : x
  2. Step 2: Convert to fraction form
    849,076.85/1,171,756.64 = 486,570.76/x
  3. Step 3: Cross multiply
    849,076.85x = 1,171,756.64 × 486,570.76
  4. Step 4: Simplify right side
    849,076.85x = 570,142,513,497.60
  5. Step 5: Solve for x
    x = 570,142,513,497.60/849,076.85
  6. Step 6: Final answer
    x = 671,485.17

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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.