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Finding the Fourth Proportional to 404,232.60, 605,312.10 and 385,570.20

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Solution

The fourth proportional to 404,232.60, 605,312.10 and 385,570.20 is: 577,366.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,232.60 : 605,312.10 = 385,570.20 : x
  2. Step 2: Convert to fraction form
    404,232.60/605,312.10 = 385,570.20/x
  3. Step 3: Cross multiply
    404,232.60x = 605,312.10 × 385,570.20
  4. Step 4: Simplify right side
    404,232.60x = 233,390,307,459.42
  5. Step 5: Solve for x
    x = 233,390,307,459.42/404,232.60
  6. Step 6: Final answer
    x = 577,366.37

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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.