Home / 914,836.90-1,371,271.20-345,998.20

Finding the Fourth Proportional to 914,836.90, 1,371,271.20 and 345,998.20

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Solution

The fourth proportional to 914,836.90, 1,371,271.20 and 345,998.20 is: 518,625.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,836.90 : 1,371,271.20 = 345,998.20 : x
  2. Step 2: Convert to fraction form
    914,836.90/1,371,271.20 = 345,998.20/x
  3. Step 3: Cross multiply
    914,836.90x = 1,371,271.20 × 345,998.20
  4. Step 4: Simplify right side
    914,836.90x = 474,457,366,911.84
  5. Step 5: Solve for x
    x = 474,457,366,911.84/914,836.90
  6. Step 6: Final answer
    x = 518,625.09

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Double scale
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Similar ratio
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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.