Home / 1,139,793.72-1,709,690.23-429,655.68

Finding the Fourth Proportional to 1,139,793.72, 1,709,690.23 and 429,655.68

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Solution

The fourth proportional to 1,139,793.72, 1,709,690.23 and 429,655.68 is: 644,483.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,793.72 : 1,709,690.23 = 429,655.68 : x
  2. Step 2: Convert to fraction form
    1,139,793.72/1,709,690.23 = 429,655.68/x
  3. Step 3: Cross multiply
    1,139,793.72x = 1,709,690.23 × 429,655.68
  4. Step 4: Simplify right side
    1,139,793.72x = 734,578,118,360.01
  5. Step 5: Solve for x
    x = 734,578,118,360.01/1,139,793.72
  6. Step 6: Final answer
    x = 644,483.39

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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.