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Finding the Fourth Proportional to 352,290.40, 528,435.60 and 346,458.40

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Solution

The fourth proportional to 352,290.40, 528,435.60 and 346,458.40 is: 519,687.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,290.40 : 528,435.60 = 346,458.40 : x
  2. Step 2: Convert to fraction form
    352,290.40/528,435.60 = 346,458.40/x
  3. Step 3: Cross multiply
    352,290.40x = 528,435.60 × 346,458.40
  4. Step 4: Simplify right side
    352,290.40x = 183,080,952,479.04
  5. Step 5: Solve for x
    x = 183,080,952,479.04/352,290.40
  6. Step 6: Final answer
    x = 519,687.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.