Home / 785,338.95-1,083,739.10-479,926.56

Finding the Fourth Proportional to 785,338.95, 1,083,739.10 and 479,926.56

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Solution

The fourth proportional to 785,338.95, 1,083,739.10 and 479,926.56 is: 662,281.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,338.95 : 1,083,739.10 = 479,926.56 : x
  2. Step 2: Convert to fraction form
    785,338.95/1,083,739.10 = 479,926.56/x
  3. Step 3: Cross multiply
    785,338.95x = 1,083,739.10 × 479,926.56
  4. Step 4: Simplify right side
    785,338.95x = 520,115,175,800.86
  5. Step 5: Solve for x
    x = 520,115,175,800.86/785,338.95
  6. Step 6: Final answer
    x = 662,281.14

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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.