Home / 1,169,721.60-1,754,582.40-421,843.20

Finding the Fourth Proportional to 1,169,721.60, 1,754,582.40 and 421,843.20

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Solution

The fourth proportional to 1,169,721.60, 1,754,582.40 and 421,843.20 is: 632,764.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,169,721.60 : 1,754,582.40 = 421,843.20 : x
  2. Step 2: Convert to fraction form
    1,169,721.60/1,754,582.40 = 421,843.20/x
  3. Step 3: Cross multiply
    1,169,721.60x = 1,754,582.40 × 421,843.20
  4. Step 4: Simplify right side
    1,169,721.60x = 740,158,654,279.68
  5. Step 5: Solve for x
    x = 740,158,654,279.68/1,169,721.60
  6. Step 6: Final answer
    x = 632,764.80

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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.