Home / 1,318,052.28-1,977,232.02-477,000.12

Finding the Fourth Proportional to 1,318,052.28, 1,977,232.02 and 477,000.12

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Solution

The fourth proportional to 1,318,052.28, 1,977,232.02 and 477,000.12 is: 715,555.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,052.28 : 1,977,232.02 = 477,000.12 : x
  2. Step 2: Convert to fraction form
    1,318,052.28/1,977,232.02 = 477,000.12/x
  3. Step 3: Cross multiply
    1,318,052.28x = 1,977,232.02 × 477,000.12
  4. Step 4: Simplify right side
    1,318,052.28x = 943,139,910,807.84
  5. Step 5: Solve for x
    x = 943,139,910,807.84/1,318,052.28
  6. Step 6: Final answer
    x = 715,555.77

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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.