Home / 1,243,405.70-1,865,108.55-1,103,437.70

Finding the Fourth Proportional to 1,243,405.70, 1,865,108.55 and 1,103,437.70

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Solution

The fourth proportional to 1,243,405.70, 1,865,108.55 and 1,103,437.70 is: 1,655,156.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,405.70 : 1,865,108.55 = 1,103,437.70 : x
  2. Step 2: Convert to fraction form
    1,243,405.70/1,865,108.55 = 1,103,437.70/x
  3. Step 3: Cross multiply
    1,243,405.70x = 1,865,108.55 × 1,103,437.70
  4. Step 4: Simplify right side
    1,243,405.70x = 2,058,031,088,662.34
  5. Step 5: Solve for x
    x = 2,058,031,088,662.34/1,243,405.70
  6. Step 6: Final answer
    x = 1,655,156.55

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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.