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Finding the Fourth Proportional to 978,525.42, 1,349,791.59 and 615,373.26

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Solution

The fourth proportional to 978,525.42, 1,349,791.59 and 615,373.26 is: 848,854.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,525.42 : 1,349,791.59 = 615,373.26 : x
  2. Step 2: Convert to fraction form
    978,525.42/1,349,791.59 = 615,373.26/x
  3. Step 3: Cross multiply
    978,525.42x = 1,349,791.59 × 615,373.26
  4. Step 4: Simplify right side
    978,525.42x = 830,625,651,058.88
  5. Step 5: Solve for x
    x = 830,625,651,058.88/978,525.42
  6. Step 6: Final answer
    x = 848,854.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.