Home / 438,118.66-604,325.37-287,225.38

Finding the Fourth Proportional to 438,118.66, 604,325.37 and 287,225.38

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Solution

The fourth proportional to 438,118.66, 604,325.37 and 287,225.38 is: 396,188.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,118.66 : 604,325.37 = 287,225.38 : x
  2. Step 2: Convert to fraction form
    438,118.66/604,325.37 = 287,225.38/x
  3. Step 3: Cross multiply
    438,118.66x = 604,325.37 × 287,225.38
  4. Step 4: Simplify right side
    438,118.66x = 173,577,584,041.89
  5. Step 5: Solve for x
    x = 173,577,584,041.89/438,118.66
  6. Step 6: Final answer
    x = 396,188.52

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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.