Home / 731,759.86-1,009,795.63-405,085.10

Finding the Fourth Proportional to 731,759.86, 1,009,795.63 and 405,085.10

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Solution

The fourth proportional to 731,759.86, 1,009,795.63 and 405,085.10 is: 558,999.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,759.86 : 1,009,795.63 = 405,085.10 : x
  2. Step 2: Convert to fraction form
    731,759.86/1,009,795.63 = 405,085.10/x
  3. Step 3: Cross multiply
    731,759.86x = 1,009,795.63 × 405,085.10
  4. Step 4: Simplify right side
    731,759.86x = 409,053,161,732.69
  5. Step 5: Solve for x
    x = 409,053,161,732.69/731,759.86
  6. Step 6: Final answer
    x = 558,999.18

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1.5x scale

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.