Home / 719,551.84-992,983.44-397,271.20

Finding the Fourth Proportional to 719,551.84, 992,983.44 and 397,271.20

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Solution

The fourth proportional to 719,551.84, 992,983.44 and 397,271.20 is: 548,235.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,551.84 : 992,983.44 = 397,271.20 : x
  2. Step 2: Convert to fraction form
    719,551.84/992,983.44 = 397,271.20/x
  3. Step 3: Cross multiply
    719,551.84x = 992,983.44 × 397,271.20
  4. Step 4: Simplify right side
    719,551.84x = 394,483,722,788.93
  5. Step 5: Solve for x
    x = 394,483,722,788.93/719,551.84
  6. Step 6: Final answer
    x = 548,235.31

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Double scale
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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.