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Finding the Fourth Proportional to 750,687, 1,035,948.59 and 406,525.62

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Solution

The fourth proportional to 750,687, 1,035,948.59 and 406,525.62 is: 561,005.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,687 : 1,035,948.59 = 406,525.62 : x
  2. Step 2: Convert to fraction form
    750,687/1,035,948.59 = 406,525.62/x
  3. Step 3: Cross multiply
    750,687x = 1,035,948.59 × 406,525.62
  4. Step 4: Simplify right side
    750,687x = 421,139,642,837.88
  5. Step 5: Solve for x
    x = 421,139,642,837.88/750,687
  6. Step 6: Final answer
    x = 561,005.64

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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.