Home / 884,554.73-1,220,391.89-720,929.88

Finding the Fourth Proportional to 884,554.73, 1,220,391.89 and 720,929.88

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Solution

The fourth proportional to 884,554.73, 1,220,391.89 and 720,929.88 is: 994,643.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,554.73 : 1,220,391.89 = 720,929.88 : x
  2. Step 2: Convert to fraction form
    884,554.73/1,220,391.89 = 720,929.88/x
  3. Step 3: Cross multiply
    884,554.73x = 1,220,391.89 × 720,929.88
  4. Step 4: Simplify right side
    884,554.73x = 879,816,975,206.02
  5. Step 5: Solve for x
    x = 879,816,975,206.02/884,554.73
  6. Step 6: Final answer
    x = 994,643.92

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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.