Home / 1,208,423.88-1,667,586.76-664,557.98

Finding the Fourth Proportional to 1,208,423.88, 1,667,586.76 and 664,557.98

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Solution

The fourth proportional to 1,208,423.88, 1,667,586.76 and 664,557.98 is: 917,069.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,423.88 : 1,667,586.76 = 664,557.98 : x
  2. Step 2: Convert to fraction form
    1,208,423.88/1,667,586.76 = 664,557.98/x
  3. Step 3: Cross multiply
    1,208,423.88x = 1,667,586.76 × 664,557.98
  4. Step 4: Simplify right side
    1,208,423.88x = 1,108,208,078,701.02
  5. Step 5: Solve for x
    x = 1,108,208,078,701.02/1,208,423.88
  6. Step 6: Final answer
    x = 917,069.00

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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.