Home / 1,307,412.80-1,961,815.80-508,720.40

Finding the Fourth Proportional to 1,307,412.80, 1,961,815.80 and 508,720.40

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Solution

The fourth proportional to 1,307,412.80, 1,961,815.80 and 508,720.40 is: 763,351.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,412.80 : 1,961,815.80 = 508,720.40 : x
  2. Step 2: Convert to fraction form
    1,307,412.80/1,961,815.80 = 508,720.40/x
  3. Step 3: Cross multiply
    1,307,412.80x = 1,961,815.80 × 508,720.40
  4. Step 4: Simplify right side
    1,307,412.80x = 998,015,718,502.32
  5. Step 5: Solve for x
    x = 998,015,718,502.32/1,307,412.80
  6. Step 6: Final answer
    x = 763,351.65

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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.