Home / 961,129.80-1,440,710.55-561,564.90

Finding the Fourth Proportional to 961,129.80, 1,440,710.55 and 561,564.90

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Solution

The fourth proportional to 961,129.80, 1,440,710.55 and 561,564.90 is: 841,772.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,129.80 : 1,440,710.55 = 561,564.90 : x
  2. Step 2: Convert to fraction form
    961,129.80/1,440,710.55 = 561,564.90/x
  3. Step 3: Cross multiply
    961,129.80x = 1,440,710.55 × 561,564.90
  4. Step 4: Simplify right side
    961,129.80x = 809,052,475,939.70
  5. Step 5: Solve for x
    x = 809,052,475,939.70/961,129.80
  6. Step 6: Final answer
    x = 841,772.33

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1.5x scale

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.