Home / 691,728.90-1,036,621.35-549,816.90

Finding the Fourth Proportional to 691,728.90, 1,036,621.35 and 549,816.90

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Solution

The fourth proportional to 691,728.90, 1,036,621.35 and 549,816.90 is: 823,952.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,728.90 : 1,036,621.35 = 549,816.90 : x
  2. Step 2: Convert to fraction form
    691,728.90/1,036,621.35 = 549,816.90/x
  3. Step 3: Cross multiply
    691,728.90x = 1,036,621.35 × 549,816.90
  4. Step 4: Simplify right side
    691,728.90x = 569,951,937,130.82
  5. Step 5: Solve for x
    x = 569,951,937,130.82/691,728.90
  6. Step 6: Final answer
    x = 823,952.76

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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.