Home / 750,858.79-1,036,176.88-406,686.16

Finding the Fourth Proportional to 750,858.79, 1,036,176.88 and 406,686.16

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Solution

The fourth proportional to 750,858.79, 1,036,176.88 and 406,686.16 is: 561,222.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,858.79 : 1,036,176.88 = 406,686.16 : x
  2. Step 2: Convert to fraction form
    750,858.79/1,036,176.88 = 406,686.16/x
  3. Step 3: Cross multiply
    750,858.79x = 1,036,176.88 × 406,686.16
  4. Step 4: Simplify right side
    750,858.79x = 421,398,796,407.98
  5. Step 5: Solve for x
    x = 421,398,796,407.98/750,858.79
  6. Step 6: Final answer
    x = 561,222.43

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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.