Home / 1,270,267.61-1,905,775.72-511,718.74

Finding the Fourth Proportional to 1,270,267.61, 1,905,775.72 and 511,718.74

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Solution

The fourth proportional to 1,270,267.61, 1,905,775.72 and 511,718.74 is: 767,728.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,267.61 : 1,905,775.72 = 511,718.74 : x
  2. Step 2: Convert to fraction form
    1,270,267.61/1,905,775.72 = 511,718.74/x
  3. Step 3: Cross multiply
    1,270,267.61x = 1,905,775.72 × 511,718.74
  4. Step 4: Simplify right side
    1,270,267.61x = 975,221,150,160.99
  5. Step 5: Solve for x
    x = 975,221,150,160.99/1,270,267.61
  6. Step 6: Final answer
    x = 767,728.90

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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.