Home / 452,555-678,919.84-172,050.40

Finding the Fourth Proportional to 452,555, 678,919.84 and 172,050.40

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Solution

The fourth proportional to 452,555, 678,919.84 and 172,050.40 is: 258,108.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,555 : 678,919.84 = 172,050.40 : x
  2. Step 2: Convert to fraction form
    452,555/678,919.84 = 172,050.40/x
  3. Step 3: Cross multiply
    452,555x = 678,919.84 × 172,050.40
  4. Step 4: Simplify right side
    452,555x = 116,808,430,039.94
  5. Step 5: Solve for x
    x = 116,808,430,039.94/452,555
  6. Step 6: Final answer
    x = 258,108.80

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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.