Home / 849,482.40-1,273,786.20-316,729.20

Finding the Fourth Proportional to 849,482.40, 1,273,786.20 and 316,729.20

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Solution

The fourth proportional to 849,482.40, 1,273,786.20 and 316,729.20 is: 474,930.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,482.40 : 1,273,786.20 = 316,729.20 : x
  2. Step 2: Convert to fraction form
    849,482.40/1,273,786.20 = 316,729.20/x
  3. Step 3: Cross multiply
    849,482.40x = 1,273,786.20 × 316,729.20
  4. Step 4: Simplify right side
    849,482.40x = 403,445,284,097.04
  5. Step 5: Solve for x
    x = 403,445,284,097.04/849,482.40
  6. Step 6: Final answer
    x = 474,930.72

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Double scale
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1.5x scale

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.