Home / 1,312,663.96-1,811,876.75-761,518.90

Finding the Fourth Proportional to 1,312,663.96, 1,811,876.75 and 761,518.90

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Solution

The fourth proportional to 1,312,663.96, 1,811,876.75 and 761,518.90 is: 1,051,128.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,663.96 : 1,811,876.75 = 761,518.90 : x
  2. Step 2: Convert to fraction form
    1,312,663.96/1,811,876.75 = 761,518.90/x
  3. Step 3: Cross multiply
    1,312,663.96x = 1,811,876.75 × 761,518.90
  4. Step 4: Simplify right side
    1,312,663.96x = 1,379,778,389,595.58
  5. Step 5: Solve for x
    x = 1,379,778,389,595.58/1,312,663.96
  6. Step 6: Final answer
    x = 1,051,128.42

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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.