Home / 659,941.36-910,719.72-358,135.36

Finding the Fourth Proportional to 659,941.36, 910,719.72 and 358,135.36

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Solution

The fourth proportional to 659,941.36, 910,719.72 and 358,135.36 is: 494,227.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,941.36 : 910,719.72 = 358,135.36 : x
  2. Step 2: Convert to fraction form
    659,941.36/910,719.72 = 358,135.36/x
  3. Step 3: Cross multiply
    659,941.36x = 910,719.72 × 358,135.36
  4. Step 4: Simplify right side
    659,941.36x = 326,160,934,781.30
  5. Step 5: Solve for x
    x = 326,160,934,781.30/659,941.36
  6. Step 6: Final answer
    x = 494,227.15

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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.