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Finding the Fourth Proportional to 660,036.36, 910,850.76 and 358,230.36

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Solution

The fourth proportional to 660,036.36, 910,850.76 and 358,230.36 is: 494,358.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,036.36 : 910,850.76 = 358,230.36 : x
  2. Step 2: Convert to fraction form
    660,036.36/910,850.76 = 358,230.36/x
  3. Step 3: Cross multiply
    660,036.36x = 910,850.76 × 358,230.36
  4. Step 4: Simplify right side
    660,036.36x = 326,294,395,661.07
  5. Step 5: Solve for x
    x = 326,294,395,661.07/660,036.36
  6. Step 6: Final answer
    x = 494,358.21

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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.