Home / 699,988.80-1,048,816.80-657,998.40

Finding the Fourth Proportional to 699,988.80, 1,048,816.80 and 657,998.40

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Solution

The fourth proportional to 699,988.80, 1,048,816.80 and 657,998.40 is: 985,901.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,988.80 : 1,048,816.80 = 657,998.40 : x
  2. Step 2: Convert to fraction form
    699,988.80/1,048,816.80 = 657,998.40/x
  3. Step 3: Cross multiply
    699,988.80x = 1,048,816.80 × 657,998.40
  4. Step 4: Simplify right side
    699,988.80x = 690,119,776,293.12
  5. Step 5: Solve for x
    x = 690,119,776,293.12/699,988.80
  6. Step 6: Final answer
    x = 985,901.17

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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.