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Finding the Fourth Proportional to 1,766,606.39, 2,649,853.08 and 742,479.25

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Solution

The fourth proportional to 1,766,606.39, 2,649,853.08 and 742,479.25 is: 1,113,695.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,766,606.39 : 2,649,853.08 = 742,479.25 : x
  2. Step 2: Convert to fraction form
    1,766,606.39/2,649,853.08 = 742,479.25/x
  3. Step 3: Cross multiply
    1,766,606.39x = 2,649,853.08 × 742,479.25
  4. Step 4: Simplify right side
    1,766,606.39x = 1,967,460,927,448.59
  5. Step 5: Solve for x
    x = 1,967,460,927,448.59/1,766,606.39
  6. Step 6: Final answer
    x = 1,113,695.13

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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.