Home / 385,440.74-578,157.89-301,271.69

Finding the Fourth Proportional to 385,440.74, 578,157.89 and 301,271.69

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Solution

The fourth proportional to 385,440.74, 578,157.89 and 301,271.69 is: 451,905.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,440.74 : 578,157.89 = 301,271.69 : x
  2. Step 2: Convert to fraction form
    385,440.74/578,157.89 = 301,271.69/x
  3. Step 3: Cross multiply
    385,440.74x = 578,157.89 × 301,271.69
  4. Step 4: Simplify right side
    385,440.74x = 174,182,604,546.17
  5. Step 5: Solve for x
    x = 174,182,604,546.17/385,440.74
  6. Step 6: Final answer
    x = 451,905.02

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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.