Home / 1,177,738.24-1,766,636.40-429,784

Finding the Fourth Proportional to 1,177,738.24, 1,766,636.40 and 429,784

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Solution

The fourth proportional to 1,177,738.24, 1,766,636.40 and 429,784 is: 644,686.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177,738.24 : 1,766,636.40 = 429,784 : x
  2. Step 2: Convert to fraction form
    1,177,738.24/1,766,636.40 = 429,784/x
  3. Step 3: Cross multiply
    1,177,738.24x = 1,766,636.40 × 429,784
  4. Step 4: Simplify right side
    1,177,738.24x = 759,272,058,537.60
  5. Step 5: Solve for x
    x = 759,272,058,537.60/1,177,738.24
  6. Step 6: Final answer
    x = 644,686.60

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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.