Home / 1,230,374.71-1,697,921.80-686,533.42

Finding the Fourth Proportional to 1,230,374.71, 1,697,921.80 and 686,533.42

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Solution

The fourth proportional to 1,230,374.71, 1,697,921.80 and 686,533.42 is: 947,418.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,374.71 : 1,697,921.80 = 686,533.42 : x
  2. Step 2: Convert to fraction form
    1,230,374.71/1,697,921.80 = 686,533.42/x
  3. Step 3: Cross multiply
    1,230,374.71x = 1,697,921.80 × 686,533.42
  4. Step 4: Simplify right side
    1,230,374.71x = 1,165,680,056,813.89
  5. Step 5: Solve for x
    x = 1,165,680,056,813.89/1,230,374.71
  6. Step 6: Final answer
    x = 947,418.74

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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.