Home / 1,518,638.19-2,272,359.79-911,795.33

Finding the Fourth Proportional to 1,518,638.19, 2,272,359.79 and 911,795.33

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Solution

The fourth proportional to 1,518,638.19, 2,272,359.79 and 911,795.33 is: 1,364,332.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,518,638.19 : 2,272,359.79 = 911,795.33 : x
  2. Step 2: Convert to fraction form
    1,518,638.19/2,272,359.79 = 911,795.33/x
  3. Step 3: Cross multiply
    1,518,638.19x = 2,272,359.79 × 911,795.33
  4. Step 4: Simplify right side
    1,518,638.19x = 2,071,927,051,422.42
  5. Step 5: Solve for x
    x = 2,071,927,051,422.42/1,518,638.19
  6. Step 6: Final answer
    x = 1,364,332.25

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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.