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Finding the Fourth Proportional to 646,254, 891,851.04 and 404,459.28

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Solution

The fourth proportional to 646,254, 891,851.04 and 404,459.28 is: 558,166.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,254 : 891,851.04 = 404,459.28 : x
  2. Step 2: Convert to fraction form
    646,254/891,851.04 = 404,459.28/x
  3. Step 3: Cross multiply
    646,254x = 891,851.04 × 404,459.28
  4. Step 4: Simplify right side
    646,254x = 360,717,429,505.65
  5. Step 5: Solve for x
    x = 360,717,429,505.65/646,254
  6. Step 6: Final answer
    x = 558,166.65

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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.