Home / 1,051,903.40-1,577,855.10-815,415.80

Finding the Fourth Proportional to 1,051,903.40, 1,577,855.10 and 815,415.80

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Solution

The fourth proportional to 1,051,903.40, 1,577,855.10 and 815,415.80 is: 1,223,123.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,903.40 : 1,577,855.10 = 815,415.80 : x
  2. Step 2: Convert to fraction form
    1,051,903.40/1,577,855.10 = 815,415.80/x
  3. Step 3: Cross multiply
    1,051,903.40x = 1,577,855.10 × 815,415.80
  4. Step 4: Simplify right side
    1,051,903.40x = 1,286,607,978,650.58
  5. Step 5: Solve for x
    x = 1,286,607,978,650.58/1,051,903.40
  6. Step 6: Final answer
    x = 1,223,123.70

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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.