Home / 692,912.70-1,039,369.05-456,522.30

Finding the Fourth Proportional to 692,912.70, 1,039,369.05 and 456,522.30

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Solution

The fourth proportional to 692,912.70, 1,039,369.05 and 456,522.30 is: 684,783.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,912.70 : 1,039,369.05 = 456,522.30 : x
  2. Step 2: Convert to fraction form
    692,912.70/1,039,369.05 = 456,522.30/x
  3. Step 3: Cross multiply
    692,912.70x = 1,039,369.05 × 456,522.30
  4. Step 4: Simplify right side
    692,912.70x = 474,495,149,254.82
  5. Step 5: Solve for x
    x = 474,495,149,254.82/692,912.70
  6. Step 6: Final answer
    x = 684,783.45

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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.