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Finding the Fourth Proportional to 518,349.03, 715,379.61 and 288,927.26

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Solution

The fourth proportional to 518,349.03, 715,379.61 and 288,927.26 is: 398,751.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,349.03 : 715,379.61 = 288,927.26 : x
  2. Step 2: Convert to fraction form
    518,349.03/715,379.61 = 288,927.26/x
  3. Step 3: Cross multiply
    518,349.03x = 715,379.61 × 288,927.26
  4. Step 4: Simplify right side
    518,349.03x = 206,692,670,577.17
  5. Step 5: Solve for x
    x = 206,692,670,577.17/518,349.03
  6. Step 6: Final answer
    x = 398,751.92

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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.