Home / 385,449.10-578,170.40-301,280.06

Finding the Fourth Proportional to 385,449.10, 578,170.40 and 301,280.06

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Solution

The fourth proportional to 385,449.10, 578,170.40 and 301,280.06 is: 451,917.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,449.10 : 578,170.40 = 301,280.06 : x
  2. Step 2: Convert to fraction form
    385,449.10/578,170.40 = 301,280.06/x
  3. Step 3: Cross multiply
    385,449.10x = 578,170.40 × 301,280.06
  4. Step 4: Simplify right side
    385,449.10x = 174,191,212,802.22
  5. Step 5: Solve for x
    x = 174,191,212,802.22/385,449.10
  6. Step 6: Final answer
    x = 451,917.55

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1.5x scale

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.