Home / 930,810.60-1,284,671.10-775,515.78

Finding the Fourth Proportional to 930,810.60, 1,284,671.10 and 775,515.78

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Solution

The fourth proportional to 930,810.60, 1,284,671.10 and 775,515.78 is: 1,070,338.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,810.60 : 1,284,671.10 = 775,515.78 : x
  2. Step 2: Convert to fraction form
    930,810.60/1,284,671.10 = 775,515.78/x
  3. Step 3: Cross multiply
    930,810.60x = 1,284,671.10 × 775,515.78
  4. Step 4: Simplify right side
    930,810.60x = 996,282,710,159.96
  5. Step 5: Solve for x
    x = 996,282,710,159.96/930,810.60
  6. Step 6: Final answer
    x = 1,070,338.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.