Home / 672,975.50-1,009,460-639,337.82

Finding the Fourth Proportional to 672,975.50, 1,009,460 and 639,337.82

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Solution

The fourth proportional to 672,975.50, 1,009,460 and 639,337.82 is: 959,003.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,975.50 : 1,009,460 = 639,337.82 : x
  2. Step 2: Convert to fraction form
    672,975.50/1,009,460 = 639,337.82/x
  3. Step 3: Cross multiply
    672,975.50x = 1,009,460 × 639,337.82
  4. Step 4: Simplify right side
    672,975.50x = 645,385,955,777.20
  5. Step 5: Solve for x
    x = 645,385,955,777.20/672,975.50
  6. Step 6: Final answer
    x = 959,003.64

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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.