Home / 1,139,658.12-1,572,645.24-630,369

Finding the Fourth Proportional to 1,139,658.12, 1,572,645.24 and 630,369

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Solution

The fourth proportional to 1,139,658.12, 1,572,645.24 and 630,369 is: 869,863.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,658.12 : 1,572,645.24 = 630,369 : x
  2. Step 2: Convert to fraction form
    1,139,658.12/1,572,645.24 = 630,369/x
  3. Step 3: Cross multiply
    1,139,658.12x = 1,572,645.24 × 630,369
  4. Step 4: Simplify right side
    1,139,658.12x = 991,346,807,293.56
  5. Step 5: Solve for x
    x = 991,346,807,293.56/1,139,658.12
  6. Step 6: Final answer
    x = 869,863.33

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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.