Home / 849,139.66-1,273,667.95-316,619.16

Finding the Fourth Proportional to 849,139.66, 1,273,667.95 and 316,619.16

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Solution

The fourth proportional to 849,139.66, 1,273,667.95 and 316,619.16 is: 474,913.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,139.66 : 1,273,667.95 = 316,619.16 : x
  2. Step 2: Convert to fraction form
    849,139.66/1,273,667.95 = 316,619.16/x
  3. Step 3: Cross multiply
    849,139.66x = 1,273,667.95 × 316,619.16
  4. Step 4: Simplify right side
    849,139.66x = 403,267,676,447.92
  5. Step 5: Solve for x
    x = 403,267,676,447.92/849,139.66
  6. Step 6: Final answer
    x = 474,913.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.