Home / 692,748.30-1,039,421.81-372,525.89

Finding the Fourth Proportional to 692,748.30, 1,039,421.81 and 372,525.89

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Solution

The fourth proportional to 692,748.30, 1,039,421.81 and 372,525.89 is: 558,949.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,748.30 : 1,039,421.81 = 372,525.89 : x
  2. Step 2: Convert to fraction form
    692,748.30/1,039,421.81 = 372,525.89/x
  3. Step 3: Cross multiply
    692,748.30x = 1,039,421.81 × 372,525.89
  4. Step 4: Simplify right side
    692,748.30x = 387,211,532,993.03
  5. Step 5: Solve for x
    x = 387,211,532,993.03/692,748.30
  6. Step 6: Final answer
    x = 558,949.81

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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.