Home / 1,105,115.10-1,657,672.65-768,535.80

Finding the Fourth Proportional to 1,105,115.10, 1,657,672.65 and 768,535.80

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Solution

The fourth proportional to 1,105,115.10, 1,657,672.65 and 768,535.80 is: 1,152,803.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,115.10 : 1,657,672.65 = 768,535.80 : x
  2. Step 2: Convert to fraction form
    1,105,115.10/1,657,672.65 = 768,535.80/x
  3. Step 3: Cross multiply
    1,105,115.10x = 1,657,672.65 × 768,535.80
  4. Step 4: Simplify right side
    1,105,115.10x = 1,273,980,776,205.87
  5. Step 5: Solve for x
    x = 1,273,980,776,205.87/1,105,115.10
  6. Step 6: Final answer
    x = 1,152,803.70

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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.