Home / 1,346,411.80-2,018,613.30-813,820.60

Finding the Fourth Proportional to 1,346,411.80, 2,018,613.30 and 813,820.60

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Solution

The fourth proportional to 1,346,411.80, 2,018,613.30 and 813,820.60 is: 1,220,123.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346,411.80 : 2,018,613.30 = 813,820.60 : x
  2. Step 2: Convert to fraction form
    1,346,411.80/2,018,613.30 = 813,820.60/x
  3. Step 3: Cross multiply
    1,346,411.80x = 2,018,613.30 × 813,820.60
  4. Step 4: Simplify right side
    1,346,411.80x = 1,642,789,086,973.98
  5. Step 5: Solve for x
    x = 1,642,789,086,973.98/1,346,411.80
  6. Step 6: Final answer
    x = 1,220,123.80

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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.