Home / 1,338,254.40-2,005,826.40-539,140.80

Finding the Fourth Proportional to 1,338,254.40, 2,005,826.40 and 539,140.80

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Solution

The fourth proportional to 1,338,254.40, 2,005,826.40 and 539,140.80 is: 808,084.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,254.40 : 2,005,826.40 = 539,140.80 : x
  2. Step 2: Convert to fraction form
    1,338,254.40/2,005,826.40 = 539,140.80/x
  3. Step 3: Cross multiply
    1,338,254.40x = 2,005,826.40 × 539,140.80
  4. Step 4: Simplify right side
    1,338,254.40x = 1,081,422,849,957.12
  5. Step 5: Solve for x
    x = 1,081,422,849,957.12/1,338,254.40
  6. Step 6: Final answer
    x = 808,084.66

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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.