Home / 772,497-1,065,811.14-486,302.76

Finding the Fourth Proportional to 772,497, 1,065,811.14 and 486,302.76

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Solution

The fourth proportional to 772,497, 1,065,811.14 and 486,302.76 is: 670,950.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,497 : 1,065,811.14 = 486,302.76 : x
  2. Step 2: Convert to fraction form
    772,497/1,065,811.14 = 486,302.76/x
  3. Step 3: Cross multiply
    772,497x = 1,065,811.14 × 486,302.76
  4. Step 4: Simplify right side
    772,497x = 518,306,899,020.75
  5. Step 5: Solve for x
    x = 518,306,899,020.75/772,497
  6. Step 6: Final answer
    x = 670,950.05

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Double scale
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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.