Home / 819,119.72-1,130,390.45-456,566.60

Finding the Fourth Proportional to 819,119.72, 1,130,390.45 and 456,566.60

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Solution

The fourth proportional to 819,119.72, 1,130,390.45 and 456,566.60 is: 630,064.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,119.72 : 1,130,390.45 = 456,566.60 : x
  2. Step 2: Convert to fraction form
    819,119.72/1,130,390.45 = 456,566.60/x
  3. Step 3: Cross multiply
    819,119.72x = 1,130,390.45 × 456,566.60
  4. Step 4: Simplify right side
    819,119.72x = 516,098,516,494.19
  5. Step 5: Solve for x
    x = 516,098,516,494.19/819,119.72
  6. Step 6: Final answer
    x = 630,064.82

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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.