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Finding the Fourth Proportional to 497,745.40, 746,618.10 and 340,281.40

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Solution

The fourth proportional to 497,745.40, 746,618.10 and 340,281.40 is: 510,422.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,745.40 : 746,618.10 = 340,281.40 : x
  2. Step 2: Convert to fraction form
    497,745.40/746,618.10 = 340,281.40/x
  3. Step 3: Cross multiply
    497,745.40x = 746,618.10 × 340,281.40
  4. Step 4: Simplify right side
    497,745.40x = 254,060,252,333.34
  5. Step 5: Solve for x
    x = 254,060,252,333.34/497,745.40
  6. Step 6: Final answer
    x = 510,422.10

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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.