Home / 1,186,772.68-1,780,139.58-288,221.80

Finding the Fourth Proportional to 1,186,772.68, 1,780,139.58 and 288,221.80

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Solution

The fourth proportional to 1,186,772.68, 1,780,139.58 and 288,221.80 is: 432,327.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,772.68 : 1,780,139.58 = 288,221.80 : x
  2. Step 2: Convert to fraction form
    1,186,772.68/1,780,139.58 = 288,221.80/x
  3. Step 3: Cross multiply
    1,186,772.68x = 1,780,139.58 × 288,221.80
  4. Step 4: Simplify right side
    1,186,772.68x = 513,075,033,998.84
  5. Step 5: Solve for x
    x = 513,075,033,998.84/1,186,772.68
  6. Step 6: Final answer
    x = 432,327.98

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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.