Home / 1,130,739.75-1,560,420.86-621,442.13

Finding the Fourth Proportional to 1,130,739.75, 1,560,420.86 and 621,442.13

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Solution

The fourth proportional to 1,130,739.75, 1,560,420.86 and 621,442.13 is: 857,590.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,739.75 : 1,560,420.86 = 621,442.13 : x
  2. Step 2: Convert to fraction form
    1,130,739.75/1,560,420.86 = 621,442.13/x
  3. Step 3: Cross multiply
    1,130,739.75x = 1,560,420.86 × 621,442.13
  4. Step 4: Simplify right side
    1,130,739.75x = 969,711,252,025.52
  5. Step 5: Solve for x
    x = 969,711,252,025.52/1,130,739.75
  6. Step 6: Final answer
    x = 857,590.13

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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.