Home / 734,811.68-1,013,970.12-412,447.88

Finding the Fourth Proportional to 734,811.68, 1,013,970.12 and 412,447.88

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Solution

The fourth proportional to 734,811.68, 1,013,970.12 and 412,447.88 is: 569,138.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,811.68 : 1,013,970.12 = 412,447.88 : x
  2. Step 2: Convert to fraction form
    734,811.68/1,013,970.12 = 412,447.88/x
  3. Step 3: Cross multiply
    734,811.68x = 1,013,970.12 × 412,447.88
  4. Step 4: Simplify right side
    734,811.68x = 418,209,821,307.50
  5. Step 5: Solve for x
    x = 418,209,821,307.50/734,811.68
  6. Step 6: Final answer
    x = 569,138.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.