Home / 698,522.70-1,047,784.05-319,442.70

Finding the Fourth Proportional to 698,522.70, 1,047,784.05 and 319,442.70

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Solution

The fourth proportional to 698,522.70, 1,047,784.05 and 319,442.70 is: 479,164.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,522.70 : 1,047,784.05 = 319,442.70 : x
  2. Step 2: Convert to fraction form
    698,522.70/1,047,784.05 = 319,442.70/x
  3. Step 3: Cross multiply
    698,522.70x = 1,047,784.05 × 319,442.70
  4. Step 4: Simplify right side
    698,522.70x = 334,706,965,948.94
  5. Step 5: Solve for x
    x = 334,706,965,948.94/698,522.70
  6. Step 6: Final answer
    x = 479,164.05

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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.