Home / 849,761.40-1,272,017.70-493,717.80

Finding the Fourth Proportional to 849,761.40, 1,272,017.70 and 493,717.80

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Solution

The fourth proportional to 849,761.40, 1,272,017.70 and 493,717.80 is: 739,051.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,761.40 : 1,272,017.70 = 493,717.80 : x
  2. Step 2: Convert to fraction form
    849,761.40/1,272,017.70 = 493,717.80/x
  3. Step 3: Cross multiply
    849,761.40x = 1,272,017.70 × 493,717.80
  4. Step 4: Simplify right side
    849,761.40x = 628,017,780,405.06
  5. Step 5: Solve for x
    x = 628,017,780,405.06/849,761.40
  6. Step 6: Final answer
    x = 739,051.90

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1.5x scale

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.