Home / 1,007,637.20-1,390,530.12-554,918.48

Finding the Fourth Proportional to 1,007,637.20, 1,390,530.12 and 554,918.48

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Solution

The fourth proportional to 1,007,637.20, 1,390,530.12 and 554,918.48 is: 765,782.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,637.20 : 1,390,530.12 = 554,918.48 : x
  2. Step 2: Convert to fraction form
    1,007,637.20/1,390,530.12 = 554,918.48/x
  3. Step 3: Cross multiply
    1,007,637.20x = 1,390,530.12 × 554,918.48
  4. Step 4: Simplify right side
    1,007,637.20x = 771,630,860,584.62
  5. Step 5: Solve for x
    x = 771,630,860,584.62/1,007,637.20
  6. Step 6: Final answer
    x = 765,782.43

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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.