Home / 991,682.79-1,486,651.76-393,064.13

Finding the Fourth Proportional to 991,682.79, 1,486,651.76 and 393,064.13

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Solution

The fourth proportional to 991,682.79, 1,486,651.76 and 393,064.13 is: 589,250.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,682.79 : 1,486,651.76 = 393,064.13 : x
  2. Step 2: Convert to fraction form
    991,682.79/1,486,651.76 = 393,064.13/x
  3. Step 3: Cross multiply
    991,682.79x = 1,486,651.76 × 393,064.13
  4. Step 4: Simplify right side
    991,682.79x = 584,349,482,408.68
  5. Step 5: Solve for x
    x = 584,349,482,408.68/991,682.79
  6. Step 6: Final answer
    x = 589,250.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.