Home / 1,287,807.95-1,931,748.57-341,178.77

Finding the Fourth Proportional to 1,287,807.95, 1,931,748.57 and 341,178.77

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Solution

The fourth proportional to 1,287,807.95, 1,931,748.57 and 341,178.77 is: 511,777.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,807.95 : 1,931,748.57 = 341,178.77 : x
  2. Step 2: Convert to fraction form
    1,287,807.95/1,931,748.57 = 341,178.77/x
  3. Step 3: Cross multiply
    1,287,807.95x = 1,931,748.57 × 341,178.77
  4. Step 4: Simplify right side
    1,287,807.95x = 659,071,591,403.12
  5. Step 5: Solve for x
    x = 659,071,591,403.12/1,287,807.95
  6. Step 6: Final answer
    x = 511,777.86

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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.