Home / 691,466.03-1,037,188.75-421,673.45

Finding the Fourth Proportional to 691,466.03, 1,037,188.75 and 421,673.45

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Solution

The fourth proportional to 691,466.03, 1,037,188.75 and 421,673.45 is: 632,503.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,466.03 : 1,037,188.75 = 421,673.45 : x
  2. Step 2: Convert to fraction form
    691,466.03/1,037,188.75 = 421,673.45/x
  3. Step 3: Cross multiply
    691,466.03x = 1,037,188.75 × 421,673.45
  4. Step 4: Simplify right side
    691,466.03x = 437,354,958,513.69
  5. Step 5: Solve for x
    x = 437,354,958,513.69/691,466.03
  6. Step 6: Final answer
    x = 632,503.90

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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.