Home / 920,133.15-1,269,841.77-557,588.76

Finding the Fourth Proportional to 920,133.15, 1,269,841.77 and 557,588.76

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Solution

The fourth proportional to 920,133.15, 1,269,841.77 and 557,588.76 is: 769,507.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,133.15 : 1,269,841.77 = 557,588.76 : x
  2. Step 2: Convert to fraction form
    920,133.15/1,269,841.77 = 557,588.76/x
  3. Step 3: Cross multiply
    920,133.15x = 1,269,841.77 × 557,588.76
  4. Step 4: Simplify right side
    920,133.15x = 708,049,497,930.51
  5. Step 5: Solve for x
    x = 708,049,497,930.51/920,133.15
  6. Step 6: Final answer
    x = 769,507.65

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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.