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Finding the Fourth Proportional to 304,008.40, 426,311.60 and 304,008.40

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Solution

The fourth proportional to 304,008.40, 426,311.60 and 304,008.40 is: 426,311.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,008.40 : 426,311.60 = 304,008.40 : x
  2. Step 2: Convert to fraction form
    304,008.40/426,311.60 = 304,008.40/x
  3. Step 3: Cross multiply
    304,008.40x = 426,311.60 × 304,008.40
  4. Step 4: Simplify right side
    304,008.40x = 129,602,307,417.44
  5. Step 5: Solve for x
    x = 129,602,307,417.44/304,008.40
  6. Step 6: Final answer
    x = 426,311.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.