Home / 672,104.60-1,008,156.90-519,889.40

Finding the Fourth Proportional to 672,104.60, 1,008,156.90 and 519,889.40

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Solution

The fourth proportional to 672,104.60, 1,008,156.90 and 519,889.40 is: 779,834.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,104.60 : 1,008,156.90 = 519,889.40 : x
  2. Step 2: Convert to fraction form
    672,104.60/1,008,156.90 = 519,889.40/x
  3. Step 3: Cross multiply
    672,104.60x = 1,008,156.90 × 519,889.40
  4. Step 4: Simplify right side
    672,104.60x = 524,130,085,846.86
  5. Step 5: Solve for x
    x = 524,130,085,846.86/672,104.60
  6. Step 6: Final answer
    x = 779,834.10

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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.