Home / 713,526.98-984,629.40-407,543.28

Finding the Fourth Proportional to 713,526.98, 984,629.40 and 407,543.28

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Solution

The fourth proportional to 713,526.98, 984,629.40 and 407,543.28 is: 562,388.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,526.98 : 984,629.40 = 407,543.28 : x
  2. Step 2: Convert to fraction form
    713,526.98/984,629.40 = 407,543.28/x
  3. Step 3: Cross multiply
    713,526.98x = 984,629.40 × 407,543.28
  4. Step 4: Simplify right side
    713,526.98x = 401,279,095,260.43
  5. Step 5: Solve for x
    x = 401,279,095,260.43/713,526.98
  6. Step 6: Final answer
    x = 562,388.12

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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.