Home / 790,779.99-1,091,281.59-428,203.89

Finding the Fourth Proportional to 790,779.99, 1,091,281.59 and 428,203.89

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Solution

The fourth proportional to 790,779.99, 1,091,281.59 and 428,203.89 is: 590,924.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,779.99 : 1,091,281.59 = 428,203.89 : x
  2. Step 2: Convert to fraction form
    790,779.99/1,091,281.59 = 428,203.89/x
  3. Step 3: Cross multiply
    790,779.99x = 1,091,281.59 × 428,203.89
  4. Step 4: Simplify right side
    790,779.99x = 467,291,014,325.96
  5. Step 5: Solve for x
    x = 467,291,014,325.96/790,779.99
  6. Step 6: Final answer
    x = 590,924.18

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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.