Home / 1,139,802.77-1,709,703.81-429,664.74

Finding the Fourth Proportional to 1,139,802.77, 1,709,703.81 and 429,664.74

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Solution

The fourth proportional to 1,139,802.77, 1,709,703.81 and 429,664.74 is: 644,496.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,802.77 : 1,709,703.81 = 429,664.74 : x
  2. Step 2: Convert to fraction form
    1,139,802.77/1,709,703.81 = 429,664.74/x
  3. Step 3: Cross multiply
    1,139,802.77x = 1,709,703.81 × 429,664.74
  4. Step 4: Simplify right side
    1,139,802.77x = 734,599,436,589.27
  5. Step 5: Solve for x
    x = 734,599,436,589.27/1,139,802.77
  6. Step 6: Final answer
    x = 644,496.97

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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.