Home / 879,803.40-1,319,748.30-459,899.40

Finding the Fourth Proportional to 879,803.40, 1,319,748.30 and 459,899.40

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Solution

The fourth proportional to 879,803.40, 1,319,748.30 and 459,899.40 is: 689,871.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,803.40 : 1,319,748.30 = 459,899.40 : x
  2. Step 2: Convert to fraction form
    879,803.40/1,319,748.30 = 459,899.40/x
  3. Step 3: Cross multiply
    879,803.40x = 1,319,748.30 × 459,899.40
  4. Step 4: Simplify right side
    879,803.40x = 606,951,451,321.02
  5. Step 5: Solve for x
    x = 606,951,451,321.02/879,803.40
  6. Step 6: Final answer
    x = 689,871.68

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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.