Home / 1,287,887.53-1,931,043.61-614,174.89

Finding the Fourth Proportional to 1,287,887.53, 1,931,043.61 and 614,174.89

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Solution

The fourth proportional to 1,287,887.53, 1,931,043.61 and 614,174.89 is: 920,886.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,887.53 : 1,931,043.61 = 614,174.89 : x
  2. Step 2: Convert to fraction form
    1,287,887.53/1,931,043.61 = 614,174.89/x
  3. Step 3: Cross multiply
    1,287,887.53x = 1,931,043.61 × 614,174.89
  4. Step 4: Simplify right side
    1,287,887.53x = 1,185,998,496,756.95
  5. Step 5: Solve for x
    x = 1,185,998,496,756.95/1,287,887.53
  6. Step 6: Final answer
    x = 920,886.70

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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.