Home / 810,514.16-1,118,412.66-447,888.72

Finding the Fourth Proportional to 810,514.16, 1,118,412.66 and 447,888.72

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Solution

The fourth proportional to 810,514.16, 1,118,412.66 and 447,888.72 is: 618,032.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,514.16 : 1,118,412.66 = 447,888.72 : x
  2. Step 2: Convert to fraction form
    810,514.16/1,118,412.66 = 447,888.72/x
  3. Step 3: Cross multiply
    810,514.16x = 1,118,412.66 × 447,888.72
  4. Step 4: Simplify right side
    810,514.16x = 500,924,411,156.22
  5. Step 5: Solve for x
    x = 500,924,411,156.22/810,514.16
  6. Step 6: Final answer
    x = 618,032.89

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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.