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Finding the Fourth Proportional to 539,986.80, 808,813.80 and 446,674.80

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Solution

The fourth proportional to 539,986.80, 808,813.80 and 446,674.80 is: 669,047.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,986.80 : 808,813.80 = 446,674.80 : x
  2. Step 2: Convert to fraction form
    539,986.80/808,813.80 = 446,674.80/x
  3. Step 3: Cross multiply
    539,986.80x = 808,813.80 × 446,674.80
  4. Step 4: Simplify right side
    539,986.80x = 361,276,742,352.24
  5. Step 5: Solve for x
    x = 361,276,742,352.24/539,986.80
  6. Step 6: Final answer
    x = 669,047.36

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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.