Home / 920,721.01-1,270,658.86-558,160.15

Finding the Fourth Proportional to 920,721.01, 1,270,658.86 and 558,160.15

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Solution

The fourth proportional to 920,721.01, 1,270,658.86 and 558,160.15 is: 770,299.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,721.01 : 1,270,658.86 = 558,160.15 : x
  2. Step 2: Convert to fraction form
    920,721.01/1,270,658.86 = 558,160.15/x
  3. Step 3: Cross multiply
    920,721.01x = 1,270,658.86 × 558,160.15
  4. Step 4: Simplify right side
    920,721.01x = 709,231,139,896.43
  5. Step 5: Solve for x
    x = 709,231,139,896.43/920,721.01
  6. Step 6: Final answer
    x = 770,299.72

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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.