Home / 824,031-1,236,054.20-291,642.30

Finding the Fourth Proportional to 824,031, 1,236,054.20 and 291,642.30

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Solution

The fourth proportional to 824,031, 1,236,054.20 and 291,642.30 is: 437,466.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,031 : 1,236,054.20 = 291,642.30 : x
  2. Step 2: Convert to fraction form
    824,031/1,236,054.20 = 291,642.30/x
  3. Step 3: Cross multiply
    824,031x = 1,236,054.20 × 291,642.30
  4. Step 4: Simplify right side
    824,031x = 360,485,688,354.45
  5. Step 5: Solve for x
    x = 360,485,688,354.45/824,031
  6. Step 6: Final answer
    x = 437,466.17

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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.