Home / 1,177,784.24-1,766,705.40-429,830

Finding the Fourth Proportional to 1,177,784.24, 1,766,705.40 and 429,830

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Solution

The fourth proportional to 1,177,784.24, 1,766,705.40 and 429,830 is: 644,755.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177,784.24 : 1,766,705.40 = 429,830 : x
  2. Step 2: Convert to fraction form
    1,177,784.24/1,766,705.40 = 429,830/x
  3. Step 3: Cross multiply
    1,177,784.24x = 1,766,705.40 × 429,830
  4. Step 4: Simplify right side
    1,177,784.24x = 759,382,982,082
  5. Step 5: Solve for x
    x = 759,382,982,082/1,177,784.24
  6. Step 6: Final answer
    x = 644,755.60

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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.