Home / 1,240,655.80-1,860,983.70-492,701.80

Finding the Fourth Proportional to 1,240,655.80, 1,860,983.70 and 492,701.80

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Solution

The fourth proportional to 1,240,655.80, 1,860,983.70 and 492,701.80 is: 739,052.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,655.80 : 1,860,983.70 = 492,701.80 : x
  2. Step 2: Convert to fraction form
    1,240,655.80/1,860,983.70 = 492,701.80/x
  3. Step 3: Cross multiply
    1,240,655.80x = 1,860,983.70 × 492,701.80
  4. Step 4: Simplify right side
    1,240,655.80x = 916,910,018,760.66
  5. Step 5: Solve for x
    x = 916,910,018,760.66/1,240,655.80
  6. Step 6: Final answer
    x = 739,052.70

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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.