Home / 721,782.50-1,084,075.02-531,491.33

Finding the Fourth Proportional to 721,782.50, 1,084,075.02 and 531,491.33

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Solution

The fourth proportional to 721,782.50, 1,084,075.02 and 531,491.33 is: 798,268.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,782.50 : 1,084,075.02 = 531,491.33 : x
  2. Step 2: Convert to fraction form
    721,782.50/1,084,075.02 = 531,491.33/x
  3. Step 3: Cross multiply
    721,782.50x = 1,084,075.02 × 531,491.33
  4. Step 4: Simplify right side
    721,782.50x = 576,176,476,909.76
  5. Step 5: Solve for x
    x = 576,176,476,909.76/721,782.50
  6. Step 6: Final answer
    x = 798,268.84

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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.