Home / 814,421.89-1,221,840.35-575,002.19

Finding the Fourth Proportional to 814,421.89, 1,221,840.35 and 575,002.19

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Solution

The fourth proportional to 814,421.89, 1,221,840.35 and 575,002.19 is: 862,649.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,421.89 : 1,221,840.35 = 575,002.19 : x
  2. Step 2: Convert to fraction form
    814,421.89/1,221,840.35 = 575,002.19/x
  3. Step 3: Cross multiply
    814,421.89x = 1,221,840.35 × 575,002.19
  4. Step 4: Simplify right side
    814,421.89x = 702,560,879,416.22
  5. Step 5: Solve for x
    x = 702,560,879,416.22/814,421.89
  6. Step 6: Final answer
    x = 862,649.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.