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Finding the Fourth Proportional to 507,833.60, 761,750.40 and 321,670.40

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Solution

The fourth proportional to 507,833.60, 761,750.40 and 321,670.40 is: 482,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,833.60 : 761,750.40 = 321,670.40 : x
  2. Step 2: Convert to fraction form
    507,833.60/761,750.40 = 321,670.40/x
  3. Step 3: Cross multiply
    507,833.60x = 761,750.40 × 321,670.40
  4. Step 4: Simplify right side
    507,833.60x = 245,032,555,868.16
  5. Step 5: Solve for x
    x = 245,032,555,868.16/507,833.60
  6. Step 6: Final answer
    x = 482,505.60

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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.