Home / 761,818.68-1,051,010.64-489,843.36

Finding the Fourth Proportional to 761,818.68, 1,051,010.64 and 489,843.36

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Solution

The fourth proportional to 761,818.68, 1,051,010.64 and 489,843.36 is: 675,791.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,818.68 : 1,051,010.64 = 489,843.36 : x
  2. Step 2: Convert to fraction form
    761,818.68/1,051,010.64 = 489,843.36/x
  3. Step 3: Cross multiply
    761,818.68x = 1,051,010.64 × 489,843.36
  4. Step 4: Simplify right side
    761,818.68x = 514,830,583,293.35
  5. Step 5: Solve for x
    x = 514,830,583,293.35/761,818.68
  6. Step 6: Final answer
    x = 675,791.49

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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.