Home / 757,840.50-1,045,819.98-418,308.84

Finding the Fourth Proportional to 757,840.50, 1,045,819.98 and 418,308.84

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Solution

The fourth proportional to 757,840.50, 1,045,819.98 and 418,308.84 is: 577,266.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,840.50 : 1,045,819.98 = 418,308.84 : x
  2. Step 2: Convert to fraction form
    757,840.50/1,045,819.98 = 418,308.84/x
  3. Step 3: Cross multiply
    757,840.50x = 1,045,819.98 × 418,308.84
  4. Step 4: Simplify right side
    757,840.50x = 437,475,742,682.62
  5. Step 5: Solve for x
    x = 437,475,742,682.62/757,840.50
  6. Step 6: Final answer
    x = 577,266.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.