Home / 747,810.33-1,031,972.81-408,278.58

Finding the Fourth Proportional to 747,810.33, 1,031,972.81 and 408,278.58

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Solution

The fourth proportional to 747,810.33, 1,031,972.81 and 408,278.58 is: 563,421.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,810.33 : 1,031,972.81 = 408,278.58 : x
  2. Step 2: Convert to fraction form
    747,810.33/1,031,972.81 = 408,278.58/x
  3. Step 3: Cross multiply
    747,810.33x = 1,031,972.81 × 408,278.58
  4. Step 4: Simplify right side
    747,810.33x = 421,332,387,554.12
  5. Step 5: Solve for x
    x = 421,332,387,554.12/747,810.33
  6. Step 6: Final answer
    x = 563,421.46

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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.