Home / 743,536.80-1,026,083.34-421,306.56

Finding the Fourth Proportional to 743,536.80, 1,026,083.34 and 421,306.56

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Solution

The fourth proportional to 743,536.80, 1,026,083.34 and 421,306.56 is: 581,404.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,536.80 : 1,026,083.34 = 421,306.56 : x
  2. Step 2: Convert to fraction form
    743,536.80/1,026,083.34 = 421,306.56/x
  3. Step 3: Cross multiply
    743,536.80x = 1,026,083.34 × 421,306.56
  4. Step 4: Simplify right side
    743,536.80x = 432,295,642,248.71
  5. Step 5: Solve for x
    x = 432,295,642,248.71/743,536.80
  6. Step 6: Final answer
    x = 581,404.50

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1.5x scale

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.