Home / 1,286,877.80-1,930,547.10-538,999.40

Finding the Fourth Proportional to 1,286,877.80, 1,930,547.10 and 538,999.40

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Solution

The fourth proportional to 1,286,877.80, 1,930,547.10 and 538,999.40 is: 808,595.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,877.80 : 1,930,547.10 = 538,999.40 : x
  2. Step 2: Convert to fraction form
    1,286,877.80/1,930,547.10 = 538,999.40/x
  3. Step 3: Cross multiply
    1,286,877.80x = 1,930,547.10 × 538,999.40
  4. Step 4: Simplify right side
    1,286,877.80x = 1,040,563,728,571.74
  5. Step 5: Solve for x
    x = 1,040,563,728,571.74/1,286,877.80
  6. Step 6: Final answer
    x = 808,595.60

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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.