Home / 750,902.40-1,036,239.92-406,730.56

Finding the Fourth Proportional to 750,902.40, 1,036,239.92 and 406,730.56

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Solution

The fourth proportional to 750,902.40, 1,036,239.92 and 406,730.56 is: 561,285.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,902.40 : 1,036,239.92 = 406,730.56 : x
  2. Step 2: Convert to fraction form
    750,902.40/1,036,239.92 = 406,730.56/x
  3. Step 3: Cross multiply
    750,902.40x = 1,036,239.92 × 406,730.56
  4. Step 4: Simplify right side
    750,902.40x = 421,470,442,955.96
  5. Step 5: Solve for x
    x = 421,470,442,955.96/750,902.40
  6. Step 6: Final answer
    x = 561,285.25

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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.