Home / 1,407,870.09-2,112,198.80-461,905.11

Finding the Fourth Proportional to 1,407,870.09, 2,112,198.80 and 461,905.11

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Solution

The fourth proportional to 1,407,870.09, 2,112,198.80 and 461,905.11 is: 692,986.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,870.09 : 2,112,198.80 = 461,905.11 : x
  2. Step 2: Convert to fraction form
    1,407,870.09/2,112,198.80 = 461,905.11/x
  3. Step 3: Cross multiply
    1,407,870.09x = 2,112,198.80 × 461,905.11
  4. Step 4: Simplify right side
    1,407,870.09x = 975,635,416,746.34
  5. Step 5: Solve for x
    x = 975,635,416,746.34/1,407,870.09
  6. Step 6: Final answer
    x = 692,986.82

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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.