Home / 1,226,836.40-1,840,312.20-385,415.60

Finding the Fourth Proportional to 1,226,836.40, 1,840,312.20 and 385,415.60

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Solution

The fourth proportional to 1,226,836.40, 1,840,312.20 and 385,415.60 is: 578,141.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,836.40 : 1,840,312.20 = 385,415.60 : x
  2. Step 2: Convert to fraction form
    1,226,836.40/1,840,312.20 = 385,415.60/x
  3. Step 3: Cross multiply
    1,226,836.40x = 1,840,312.20 × 385,415.60
  4. Step 4: Simplify right side
    1,226,836.40x = 709,285,030,750.32
  5. Step 5: Solve for x
    x = 709,285,030,750.32/1,226,836.40
  6. Step 6: Final answer
    x = 578,141.50

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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.