Home / 1,207,748.15-1,666,695.89-691,509.95

Finding the Fourth Proportional to 1,207,748.15, 1,666,695.89 and 691,509.95

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Solution

The fourth proportional to 1,207,748.15, 1,666,695.89 and 691,509.95 is: 954,285.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,748.15 : 1,666,695.89 = 691,509.95 : x
  2. Step 2: Convert to fraction form
    1,207,748.15/1,666,695.89 = 691,509.95/x
  3. Step 3: Cross multiply
    1,207,748.15x = 1,666,695.89 × 691,509.95
  4. Step 4: Simplify right side
    1,207,748.15x = 1,152,536,791,559.11
  5. Step 5: Solve for x
    x = 1,152,536,791,559.11/1,207,748.15
  6. Step 6: Final answer
    x = 954,285.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.