Home / 1,299,857.40-1,950,938.10-766,711.80

Finding the Fourth Proportional to 1,299,857.40, 1,950,938.10 and 766,711.80

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Solution

The fourth proportional to 1,299,857.40, 1,950,938.10 and 766,711.80 is: 1,150,747.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,857.40 : 1,950,938.10 = 766,711.80 : x
  2. Step 2: Convert to fraction form
    1,299,857.40/1,950,938.10 = 766,711.80/x
  3. Step 3: Cross multiply
    1,299,857.40x = 1,950,938.10 × 766,711.80
  4. Step 4: Simplify right side
    1,299,857.40x = 1,495,807,262,339.58
  5. Step 5: Solve for x
    x = 1,495,807,262,339.58/1,299,857.40
  6. Step 6: Final answer
    x = 1,150,747.20

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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.