Home / 757,020.12-1,044,688.74-412,856.78

Finding the Fourth Proportional to 757,020.12, 1,044,688.74 and 412,856.78

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Solution

The fourth proportional to 757,020.12, 1,044,688.74 and 412,856.78 is: 569,742.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,020.12 : 1,044,688.74 = 412,856.78 : x
  2. Step 2: Convert to fraction form
    757,020.12/1,044,688.74 = 412,856.78/x
  3. Step 3: Cross multiply
    757,020.12x = 1,044,688.74 × 412,856.78
  4. Step 4: Simplify right side
    757,020.12x = 431,306,829,298.66
  5. Step 5: Solve for x
    x = 431,306,829,298.66/757,020.12
  6. Step 6: Final answer
    x = 569,742.89

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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.