Home / 1,185,775.40-1,778,663.10-1,017,813.80

Finding the Fourth Proportional to 1,185,775.40, 1,778,663.10 and 1,017,813.80

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Solution

The fourth proportional to 1,185,775.40, 1,778,663.10 and 1,017,813.80 is: 1,526,720.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,775.40 : 1,778,663.10 = 1,017,813.80 : x
  2. Step 2: Convert to fraction form
    1,185,775.40/1,778,663.10 = 1,017,813.80/x
  3. Step 3: Cross multiply
    1,185,775.40x = 1,778,663.10 × 1,017,813.80
  4. Step 4: Simplify right side
    1,185,775.40x = 1,810,347,848,730.78
  5. Step 5: Solve for x
    x = 1,810,347,848,730.78/1,185,775.40
  6. Step 6: Final answer
    x = 1,526,720.70

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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.