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Finding the Fourth Proportional to 660,029.64, 910,840.68 and 358,223.64

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Solution

The fourth proportional to 660,029.64, 910,840.68 and 358,223.64 is: 494,348.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,029.64 : 910,840.68 = 358,223.64 : x
  2. Step 2: Convert to fraction form
    660,029.64/910,840.68 = 358,223.64/x
  3. Step 3: Cross multiply
    660,029.64x = 910,840.68 × 358,223.64
  4. Step 4: Simplify right side
    660,029.64x = 326,284,663,849.68
  5. Step 5: Solve for x
    x = 326,284,663,849.68/660,029.64
  6. Step 6: Final answer
    x = 494,348.50

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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.