Home / 1,220,046.84-1,830,314.88-421,357.68

Finding the Fourth Proportional to 1,220,046.84, 1,830,314.88 and 421,357.68

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Solution

The fourth proportional to 1,220,046.84, 1,830,314.88 and 421,357.68 is: 632,121.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,046.84 : 1,830,314.88 = 421,357.68 : x
  2. Step 2: Convert to fraction form
    1,220,046.84/1,830,314.88 = 421,357.68/x
  3. Step 3: Cross multiply
    1,220,046.84x = 1,830,314.88 × 421,357.68
  4. Step 4: Simplify right side
    1,220,046.84x = 771,217,231,506.28
  5. Step 5: Solve for x
    x = 771,217,231,506.28/1,220,046.84
  6. Step 6: Final answer
    x = 632,121.00

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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.