Home / 764,666.70-1,055,238.51-438,085.47

Finding the Fourth Proportional to 764,666.70, 1,055,238.51 and 438,085.47

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Solution

The fourth proportional to 764,666.70, 1,055,238.51 and 438,085.47 is: 604,557.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,666.70 : 1,055,238.51 = 438,085.47 : x
  2. Step 2: Convert to fraction form
    764,666.70/1,055,238.51 = 438,085.47/x
  3. Step 3: Cross multiply
    764,666.70x = 1,055,238.51 × 438,085.47
  4. Step 4: Simplify right side
    764,666.70x = 462,284,658,615.45
  5. Step 5: Solve for x
    x = 462,284,658,615.45/764,666.70
  6. Step 6: Final answer
    x = 604,557.07

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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.