Home / 1,243,278.10-1,860,251.55-1,131,303.70

Finding the Fourth Proportional to 1,243,278.10, 1,860,251.55 and 1,131,303.70

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Solution

The fourth proportional to 1,243,278.10, 1,860,251.55 and 1,131,303.70 is: 1,692,710.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,278.10 : 1,860,251.55 = 1,131,303.70 : x
  2. Step 2: Convert to fraction form
    1,243,278.10/1,860,251.55 = 1,131,303.70/x
  3. Step 3: Cross multiply
    1,243,278.10x = 1,860,251.55 × 1,131,303.70
  4. Step 4: Simplify right side
    1,243,278.10x = 2,104,509,461,445.74
  5. Step 5: Solve for x
    x = 2,104,509,461,445.74/1,243,278.10
  6. Step 6: Final answer
    x = 1,692,710.15

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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.