Home / 672,063.60-1,008,095.40-639,404.40

Finding the Fourth Proportional to 672,063.60, 1,008,095.40 and 639,404.40

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Solution

The fourth proportional to 672,063.60, 1,008,095.40 and 639,404.40 is: 959,106.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,063.60 : 1,008,095.40 = 639,404.40 : x
  2. Step 2: Convert to fraction form
    672,063.60/1,008,095.40 = 639,404.40/x
  3. Step 3: Cross multiply
    672,063.60x = 1,008,095.40 × 639,404.40
  4. Step 4: Simplify right side
    672,063.60x = 644,580,634,379.76
  5. Step 5: Solve for x
    x = 644,580,634,379.76/672,063.60
  6. Step 6: Final answer
    x = 959,106.60

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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.