Home / 724,775.63-1,000,202.38-398,118.84

Finding the Fourth Proportional to 724,775.63, 1,000,202.38 and 398,118.84

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Solution

The fourth proportional to 724,775.63, 1,000,202.38 and 398,118.84 is: 549,410.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,775.63 : 1,000,202.38 = 398,118.84 : x
  2. Step 2: Convert to fraction form
    724,775.63/1,000,202.38 = 398,118.84/x
  3. Step 3: Cross multiply
    724,775.63x = 1,000,202.38 × 398,118.84
  4. Step 4: Simplify right side
    724,775.63x = 398,199,413,299.83
  5. Step 5: Solve for x
    x = 398,199,413,299.83/724,775.63
  6. Step 6: Final answer
    x = 549,410.60

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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.