Home / 1,188,390.40-1,781,798.40-656,166.40

Finding the Fourth Proportional to 1,188,390.40, 1,781,798.40 and 656,166.40

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Solution

The fourth proportional to 1,188,390.40, 1,781,798.40 and 656,166.40 is: 983,814.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,390.40 : 1,781,798.40 = 656,166.40 : x
  2. Step 2: Convert to fraction form
    1,188,390.40/1,781,798.40 = 656,166.40/x
  3. Step 3: Cross multiply
    1,188,390.40x = 1,781,798.40 × 656,166.40
  4. Step 4: Simplify right side
    1,188,390.40x = 1,169,156,241,653.76
  5. Step 5: Solve for x
    x = 1,169,156,241,653.76/1,188,390.40
  6. Step 6: Final answer
    x = 983,814.95

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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.