Home / 1,316,352.22-1,975,256.93-642,439.11

Finding the Fourth Proportional to 1,316,352.22, 1,975,256.93 and 642,439.11

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Solution

The fourth proportional to 1,316,352.22, 1,975,256.93 and 642,439.11 is: 964,014.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,352.22 : 1,975,256.93 = 642,439.11 : x
  2. Step 2: Convert to fraction form
    1,316,352.22/1,975,256.93 = 642,439.11/x
  3. Step 3: Cross multiply
    1,316,352.22x = 1,975,256.93 × 642,439.11
  4. Step 4: Simplify right side
    1,316,352.22x = 1,268,982,304,130.53
  5. Step 5: Solve for x
    x = 1,268,982,304,130.53/1,316,352.22
  6. Step 6: Final answer
    x = 964,014.25

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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.