Home / 713,631.47-984,824.93-391,322.34

Finding the Fourth Proportional to 713,631.47, 984,824.93 and 391,322.34

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Solution

The fourth proportional to 713,631.47, 984,824.93 and 391,322.34 is: 540,032.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,631.47 : 984,824.93 = 391,322.34 : x
  2. Step 2: Convert to fraction form
    713,631.47/984,824.93 = 391,322.34/x
  3. Step 3: Cross multiply
    713,631.47x = 984,824.93 × 391,322.34
  4. Step 4: Simplify right side
    713,631.47x = 385,383,997,076.24
  5. Step 5: Solve for x
    x = 385,383,997,076.24/713,631.47
  6. Step 6: Final answer
    x = 540,032.24

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1.5x scale

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.