Home / 743,722.74-1,026,316.08-421,536.96

Finding the Fourth Proportional to 743,722.74, 1,026,316.08 and 421,536.96

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Solution

The fourth proportional to 743,722.74, 1,026,316.08 and 421,536.96 is: 581,708.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,722.74 : 1,026,316.08 = 421,536.96 : x
  2. Step 2: Convert to fraction form
    743,722.74/1,026,316.08 = 421,536.96/x
  3. Step 3: Cross multiply
    743,722.74x = 1,026,316.08 × 421,536.96
  4. Step 4: Simplify right side
    743,722.74x = 432,630,160,362.32
  5. Step 5: Solve for x
    x = 432,630,160,362.32/743,722.74
  6. Step 6: Final answer
    x = 581,708.93

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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.