Home / 749,839.80-1,036,769.58-655,361.40

Finding the Fourth Proportional to 749,839.80, 1,036,769.58 and 655,361.40

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Solution

The fourth proportional to 749,839.80, 1,036,769.58 and 655,361.40 is: 906,138.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,839.80 : 1,036,769.58 = 655,361.40 : x
  2. Step 2: Convert to fraction form
    749,839.80/1,036,769.58 = 655,361.40/x
  3. Step 3: Cross multiply
    749,839.80x = 1,036,769.58 × 655,361.40
  4. Step 4: Simplify right side
    749,839.80x = 679,458,763,426.21
  5. Step 5: Solve for x
    x = 679,458,763,426.21/749,839.80
  6. Step 6: Final answer
    x = 906,138.57

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1.5x scale

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.