Home / 1,287,482-1,930,756.44-577,144.40

Finding the Fourth Proportional to 1,287,482, 1,930,756.44 and 577,144.40

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Solution

The fourth proportional to 1,287,482, 1,930,756.44 and 577,144.40 is: 865,507.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,482 : 1,930,756.44 = 577,144.40 : x
  2. Step 2: Convert to fraction form
    1,287,482/1,930,756.44 = 577,144.40/x
  3. Step 3: Cross multiply
    1,287,482x = 1,930,756.44 × 577,144.40
  4. Step 4: Simplify right side
    1,287,482x = 1,114,325,267,109.94
  5. Step 5: Solve for x
    x = 1,114,325,267,109.94/1,287,482
  6. Step 6: Final answer
    x = 865,507.45

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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.