Home / 1,230,115.95-1,697,560.74-686,251.71

Finding the Fourth Proportional to 1,230,115.95, 1,697,560.74 and 686,251.71

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Solution

The fourth proportional to 1,230,115.95, 1,697,560.74 and 686,251.71 is: 947,027.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,115.95 : 1,697,560.74 = 686,251.71 : x
  2. Step 2: Convert to fraction form
    1,230,115.95/1,697,560.74 = 686,251.71/x
  3. Step 3: Cross multiply
    1,230,115.95x = 1,697,560.74 × 686,251.71
  4. Step 4: Simplify right side
    1,230,115.95x = 1,164,953,960,653.87
  5. Step 5: Solve for x
    x = 1,164,953,960,653.87/1,230,115.95
  6. Step 6: Final answer
    x = 947,027.77

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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.