Home / 415,995.20-623,992.80-346,875.20

Finding the Fourth Proportional to 415,995.20, 623,992.80 and 346,875.20

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Solution

The fourth proportional to 415,995.20, 623,992.80 and 346,875.20 is: 520,312.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,995.20 : 623,992.80 = 346,875.20 : x
  2. Step 2: Convert to fraction form
    415,995.20/623,992.80 = 346,875.20/x
  3. Step 3: Cross multiply
    415,995.20x = 623,992.80 × 346,875.20
  4. Step 4: Simplify right side
    415,995.20x = 216,447,627,298.56
  5. Step 5: Solve for x
    x = 216,447,627,298.56/415,995.20
  6. Step 6: Final answer
    x = 520,312.80

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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.