Home / 1,226,806.60-1,840,209.90-385,443.40

Finding the Fourth Proportional to 1,226,806.60, 1,840,209.90 and 385,443.40

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Solution

The fourth proportional to 1,226,806.60, 1,840,209.90 and 385,443.40 is: 578,165.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,806.60 : 1,840,209.90 = 385,443.40 : x
  2. Step 2: Convert to fraction form
    1,226,806.60/1,840,209.90 = 385,443.40/x
  3. Step 3: Cross multiply
    1,226,806.60x = 1,840,209.90 × 385,443.40
  4. Step 4: Simplify right side
    1,226,806.60x = 709,296,760,569.66
  5. Step 5: Solve for x
    x = 709,296,760,569.66/1,226,806.60
  6. Step 6: Final answer
    x = 578,165.10

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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.