Home / 385,308.30-577,962.45-345,942.30

Finding the Fourth Proportional to 385,308.30, 577,962.45 and 345,942.30

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Solution

The fourth proportional to 385,308.30, 577,962.45 and 345,942.30 is: 518,913.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,308.30 : 577,962.45 = 345,942.30 : x
  2. Step 2: Convert to fraction form
    385,308.30/577,962.45 = 345,942.30/x
  3. Step 3: Cross multiply
    385,308.30x = 577,962.45 × 345,942.30
  4. Step 4: Simplify right side
    385,308.30x = 199,941,659,266.64
  5. Step 5: Solve for x
    x = 199,941,659,266.64/385,308.30
  6. Step 6: Final answer
    x = 518,913.45

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Similar ratio
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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.