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Finding the Fourth Proportional to 659,686.06, 910,452.62 and 369,408.16

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Solution

The fourth proportional to 659,686.06, 910,452.62 and 369,408.16 is: 509,831.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,686.06 : 910,452.62 = 369,408.16 : x
  2. Step 2: Convert to fraction form
    659,686.06/910,452.62 = 369,408.16/x
  3. Step 3: Cross multiply
    659,686.06x = 910,452.62 × 369,408.16
  4. Step 4: Simplify right side
    659,686.06x = 336,328,627,121.38
  5. Step 5: Solve for x
    x = 336,328,627,121.38/659,686.06
  6. Step 6: Final answer
    x = 509,831.34

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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.