Home / 719,455.30-992,822.29-397,158.47

Finding the Fourth Proportional to 719,455.30, 992,822.29 and 397,158.47

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Solution

The fourth proportional to 719,455.30, 992,822.29 and 397,158.47 is: 548,064.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,455.30 : 992,822.29 = 397,158.47 : x
  2. Step 2: Convert to fraction form
    719,455.30/992,822.29 = 397,158.47/x
  3. Step 3: Cross multiply
    719,455.30x = 992,822.29 × 397,158.47
  4. Step 4: Simplify right side
    719,455.30x = 394,307,779,692.50
  5. Step 5: Solve for x
    x = 394,307,779,692.50/719,455.30
  6. Step 6: Final answer
    x = 548,064.32

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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.