Home / 649,271.20-973,906.80-425,322.40

Finding the Fourth Proportional to 649,271.20, 973,906.80 and 425,322.40

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Solution

The fourth proportional to 649,271.20, 973,906.80 and 425,322.40 is: 637,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,271.20 : 973,906.80 = 425,322.40 : x
  2. Step 2: Convert to fraction form
    649,271.20/973,906.80 = 425,322.40/x
  3. Step 3: Cross multiply
    649,271.20x = 973,906.80 × 425,322.40
  4. Step 4: Simplify right side
    649,271.20x = 414,224,377,552.32
  5. Step 5: Solve for x
    x = 414,224,377,552.32/649,271.20
  6. Step 6: Final answer
    x = 637,983.60

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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.