Home / 385,454.40-578,178.26-301,285.28

Finding the Fourth Proportional to 385,454.40, 578,178.26 and 301,285.28

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Solution

The fourth proportional to 385,454.40, 578,178.26 and 301,285.28 is: 451,925.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,454.40 : 578,178.26 = 301,285.28 : x
  2. Step 2: Convert to fraction form
    385,454.40/578,178.26 = 301,285.28/x
  3. Step 3: Cross multiply
    385,454.40x = 578,178.26 × 301,285.28
  4. Step 4: Simplify right side
    385,454.40x = 174,196,598,954.01
  5. Step 5: Solve for x
    x = 174,196,598,954.01/385,454.40
  6. Step 6: Final answer
    x = 451,925.31

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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.