Home / 698,523.70-1,047,785.55-319,443.70

Finding the Fourth Proportional to 698,523.70, 1,047,785.55 and 319,443.70

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Solution

The fourth proportional to 698,523.70, 1,047,785.55 and 319,443.70 is: 479,165.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,523.70 : 1,047,785.55 = 319,443.70 : x
  2. Step 2: Convert to fraction form
    698,523.70/1,047,785.55 = 319,443.70/x
  3. Step 3: Cross multiply
    698,523.70x = 1,047,785.55 × 319,443.70
  4. Step 4: Simplify right side
    698,523.70x = 334,708,492,898.54
  5. Step 5: Solve for x
    x = 334,708,492,898.54/698,523.70
  6. Step 6: Final answer
    x = 479,165.55

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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.