Home / 849,487.40-1,273,793.70-316,734.20

Finding the Fourth Proportional to 849,487.40, 1,273,793.70 and 316,734.20

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Solution

The fourth proportional to 849,487.40, 1,273,793.70 and 316,734.20 is: 474,938.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,487.40 : 1,273,793.70 = 316,734.20 : x
  2. Step 2: Convert to fraction form
    849,487.40/1,273,793.70 = 316,734.20/x
  3. Step 3: Cross multiply
    849,487.40x = 1,273,793.70 × 316,734.20
  4. Step 4: Simplify right side
    849,487.40x = 403,454,028,534.54
  5. Step 5: Solve for x
    x = 403,454,028,534.54/849,487.40
  6. Step 6: Final answer
    x = 474,938.21

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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.