Home / 1,115,315.28-1,672,969.59-316,597.50

Finding the Fourth Proportional to 1,115,315.28, 1,672,969.59 and 316,597.50

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Solution

The fourth proportional to 1,115,315.28, 1,672,969.59 and 316,597.50 is: 474,895.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,315.28 : 1,672,969.59 = 316,597.50 : x
  2. Step 2: Convert to fraction form
    1,115,315.28/1,672,969.59 = 316,597.50/x
  3. Step 3: Cross multiply
    1,115,315.28x = 1,672,969.59 × 316,597.50
  4. Step 4: Simplify right side
    1,115,315.28x = 529,657,989,770.03
  5. Step 5: Solve for x
    x = 529,657,989,770.03/1,115,315.28
  6. Step 6: Final answer
    x = 474,895.30

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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.