Home / 766,492.32-1,057,770.40-439,858.56

Finding the Fourth Proportional to 766,492.32, 1,057,770.40 and 439,858.56

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Solution

The fourth proportional to 766,492.32, 1,057,770.40 and 439,858.56 is: 607,011.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,492.32 : 1,057,770.40 = 439,858.56 : x
  2. Step 2: Convert to fraction form
    766,492.32/1,057,770.40 = 439,858.56/x
  3. Step 3: Cross multiply
    766,492.32x = 1,057,770.40 × 439,858.56
  4. Step 4: Simplify right side
    766,492.32x = 465,269,364,954.62
  5. Step 5: Solve for x
    x = 465,269,364,954.62/766,492.32
  6. Step 6: Final answer
    x = 607,011.12

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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.