Home / 674,929.85-931,637.75-388,564.07

Finding the Fourth Proportional to 674,929.85, 931,637.75 and 388,564.07

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Solution

The fourth proportional to 674,929.85, 931,637.75 and 388,564.07 is: 536,353.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,929.85 : 931,637.75 = 388,564.07 : x
  2. Step 2: Convert to fraction form
    674,929.85/931,637.75 = 388,564.07/x
  3. Step 3: Cross multiply
    674,929.85x = 931,637.75 × 388,564.07
  4. Step 4: Simplify right side
    674,929.85x = 362,000,949,304.63
  5. Step 5: Solve for x
    x = 362,000,949,304.63/674,929.85
  6. Step 6: Final answer
    x = 536,353.45

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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.