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Finding the Fourth Proportional to 507,642.10, 700,546.86 and 278,162.92

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Solution

The fourth proportional to 507,642.10, 700,546.86 and 278,162.92 is: 383,865.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,642.10 : 700,546.86 = 278,162.92 : x
  2. Step 2: Convert to fraction form
    507,642.10/700,546.86 = 278,162.92/x
  3. Step 3: Cross multiply
    507,642.10x = 700,546.86 × 278,162.92
  4. Step 4: Simplify right side
    507,642.10x = 194,866,160,174.43
  5. Step 5: Solve for x
    x = 194,866,160,174.43/507,642.10
  6. Step 6: Final answer
    x = 383,865.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.