Home / 1,139,905.80-1,710,329.70-499,878.36

Finding the Fourth Proportional to 1,139,905.80, 1,710,329.70 and 499,878.36

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Solution

The fourth proportional to 1,139,905.80, 1,710,329.70 and 499,878.36 is: 750,024.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,905.80 : 1,710,329.70 = 499,878.36 : x
  2. Step 2: Convert to fraction form
    1,139,905.80/1,710,329.70 = 499,878.36/x
  3. Step 3: Cross multiply
    1,139,905.80x = 1,710,329.70 × 499,878.36
  4. Step 4: Simplify right side
    1,139,905.80x = 854,956,805,495.29
  5. Step 5: Solve for x
    x = 854,956,805,495.29/1,139,905.80
  6. Step 6: Final answer
    x = 750,024.09

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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.