Home / 767,475.81-1,059,218.37-445,119.30

Finding the Fourth Proportional to 767,475.81, 1,059,218.37 and 445,119.30

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Solution

The fourth proportional to 767,475.81, 1,059,218.37 and 445,119.30 is: 614,323.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,475.81 : 1,059,218.37 = 445,119.30 : x
  2. Step 2: Convert to fraction form
    767,475.81/1,059,218.37 = 445,119.30/x
  3. Step 3: Cross multiply
    767,475.81x = 1,059,218.37 × 445,119.30
  4. Step 4: Simplify right side
    767,475.81x = 471,478,539,401.54
  5. Step 5: Solve for x
    x = 471,478,539,401.54/767,475.81
  6. Step 6: Final answer
    x = 614,323.65

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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.