Home / 1,253,320.80-1,877,216.40-753,813.60

Finding the Fourth Proportional to 1,253,320.80, 1,877,216.40 and 753,813.60

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Solution

The fourth proportional to 1,253,320.80, 1,877,216.40 and 753,813.60 is: 1,129,057.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,320.80 : 1,877,216.40 = 753,813.60 : x
  2. Step 2: Convert to fraction form
    1,253,320.80/1,877,216.40 = 753,813.60/x
  3. Step 3: Cross multiply
    1,253,320.80x = 1,877,216.40 × 753,813.60
  4. Step 4: Simplify right side
    1,253,320.80x = 1,415,071,252,463.04
  5. Step 5: Solve for x
    x = 1,415,071,252,463.04/1,253,320.80
  6. Step 6: Final answer
    x = 1,129,057.50

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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.