Home / 719,455.42-992,822.45-397,158.60

Finding the Fourth Proportional to 719,455.42, 992,822.45 and 397,158.60

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Solution

The fourth proportional to 719,455.42, 992,822.45 and 397,158.60 is: 548,064.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,455.42 : 992,822.45 = 397,158.60 : x
  2. Step 2: Convert to fraction form
    719,455.42/992,822.45 = 397,158.60/x
  3. Step 3: Cross multiply
    719,455.42x = 992,822.45 × 397,158.60
  4. Step 4: Simplify right side
    719,455.42x = 394,307,975,283.47
  5. Step 5: Solve for x
    x = 394,307,975,283.47/719,455.42
  6. Step 6: Final answer
    x = 548,064.50

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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.