Home / 659,665.35-910,261.38-369,292.80

Finding the Fourth Proportional to 659,665.35, 910,261.38 and 369,292.80

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Solution

The fourth proportional to 659,665.35, 910,261.38 and 369,292.80 is: 509,581.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,665.35 : 910,261.38 = 369,292.80 : x
  2. Step 2: Convert to fraction form
    659,665.35/910,261.38 = 369,292.80/x
  3. Step 3: Cross multiply
    659,665.35x = 910,261.38 × 369,292.80
  4. Step 4: Simplify right side
    659,665.35x = 336,152,973,752.06
  5. Step 5: Solve for x
    x = 336,152,973,752.06/659,665.35
  6. Step 6: Final answer
    x = 509,581.07

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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.