Home / 1,275,698.88-1,913,618.16-517,427.76

Finding the Fourth Proportional to 1,275,698.88, 1,913,618.16 and 517,427.76

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Solution

The fourth proportional to 1,275,698.88, 1,913,618.16 and 517,427.76 is: 776,169.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,698.88 : 1,913,618.16 = 517,427.76 : x
  2. Step 2: Convert to fraction form
    1,275,698.88/1,913,618.16 = 517,427.76/x
  3. Step 3: Cross multiply
    1,275,698.88x = 1,913,618.16 × 517,427.76
  4. Step 4: Simplify right side
    1,275,698.88x = 990,159,158,024.12
  5. Step 5: Solve for x
    x = 990,159,158,024.12/1,275,698.88
  6. Step 6: Final answer
    x = 776,169.97

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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.