Home / 758,810.88-1,138,339.86-354,407.49

Finding the Fourth Proportional to 758,810.88, 1,138,339.86 and 354,407.49

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Solution

The fourth proportional to 758,810.88, 1,138,339.86 and 354,407.49 is: 531,668.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,810.88 : 1,138,339.86 = 354,407.49 : x
  2. Step 2: Convert to fraction form
    758,810.88/1,138,339.86 = 354,407.49/x
  3. Step 3: Cross multiply
    758,810.88x = 1,138,339.86 × 354,407.49
  4. Step 4: Simplify right side
    758,810.88x = 403,436,172,549.55
  5. Step 5: Solve for x
    x = 403,436,172,549.55/758,810.88
  6. Step 6: Final answer
    x = 531,668.94

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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.