Home / 764,737.80-1,055,365.11-438,109.08

Finding the Fourth Proportional to 764,737.80, 1,055,365.11 and 438,109.08

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Solution

The fourth proportional to 764,737.80, 1,055,365.11 and 438,109.08 is: 604,605.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,737.80 : 1,055,365.11 = 438,109.08 : x
  2. Step 2: Convert to fraction form
    764,737.80/1,055,365.11 = 438,109.08/x
  3. Step 3: Cross multiply
    764,737.80x = 1,055,365.11 × 438,109.08
  4. Step 4: Simplify right side
    764,737.80x = 462,365,037,406.20
  5. Step 5: Solve for x
    x = 462,365,037,406.20/764,737.80
  6. Step 6: Final answer
    x = 604,605.97

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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.