Home / 650,867.30-972,342.93-421,292.79

Finding the Fourth Proportional to 650,867.30, 972,342.93 and 421,292.79

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Solution

The fourth proportional to 650,867.30, 972,342.93 and 421,292.79 is: 629,377.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,867.30 : 972,342.93 = 421,292.79 : x
  2. Step 2: Convert to fraction form
    650,867.30/972,342.93 = 421,292.79/x
  3. Step 3: Cross multiply
    650,867.30x = 972,342.93 × 421,292.79
  4. Step 4: Simplify right side
    650,867.30x = 409,641,066,606.40
  5. Step 5: Solve for x
    x = 409,641,066,606.40/650,867.30
  6. Step 6: Final answer
    x = 629,377.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.