Home / 1,098,009.80-1,646,237.10-423,830.60

Finding the Fourth Proportional to 1,098,009.80, 1,646,237.10 and 423,830.60

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Solution

The fourth proportional to 1,098,009.80, 1,646,237.10 and 423,830.60 is: 635,445.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,009.80 : 1,646,237.10 = 423,830.60 : x
  2. Step 2: Convert to fraction form
    1,098,009.80/1,646,237.10 = 423,830.60/x
  3. Step 3: Cross multiply
    1,098,009.80x = 1,646,237.10 × 423,830.60
  4. Step 4: Simplify right side
    1,098,009.80x = 697,725,657,835.26
  5. Step 5: Solve for x
    x = 697,725,657,835.26/1,098,009.80
  6. Step 6: Final answer
    x = 635,445.75

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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.