Home / 1,276,080.75-1,915,005.15-507,499.69

Finding the Fourth Proportional to 1,276,080.75, 1,915,005.15 and 507,499.69

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Solution

The fourth proportional to 1,276,080.75, 1,915,005.15 and 507,499.69 is: 761,601.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,080.75 : 1,915,005.15 = 507,499.69 : x
  2. Step 2: Convert to fraction form
    1,276,080.75/1,915,005.15 = 507,499.69/x
  3. Step 3: Cross multiply
    1,276,080.75x = 1,915,005.15 × 507,499.69
  4. Step 4: Simplify right side
    1,276,080.75x = 971,864,519,973.40
  5. Step 5: Solve for x
    x = 971,864,519,973.40/1,276,080.75
  6. Step 6: Final answer
    x = 761,601.11

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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.