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Finding the Fourth Proportional to 528,990.72, 793,480.36 and 213,442.24

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Solution

The fourth proportional to 528,990.72, 793,480.36 and 213,442.24 is: 320,161.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,990.72 : 793,480.36 = 213,442.24 : x
  2. Step 2: Convert to fraction form
    528,990.72/793,480.36 = 213,442.24/x
  3. Step 3: Cross multiply
    528,990.72x = 793,480.36 × 213,442.24
  4. Step 4: Simplify right side
    528,990.72x = 169,362,225,434.41
  5. Step 5: Solve for x
    x = 169,362,225,434.41/528,990.72
  6. Step 6: Final answer
    x = 320,161.05

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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.