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Finding the Fourth Proportional to 528,559.04, 729,232.80 and 302,043.20

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Solution

The fourth proportional to 528,559.04, 729,232.80 and 302,043.20 is: 416,717.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,559.04 : 729,232.80 = 302,043.20 : x
  2. Step 2: Convert to fraction form
    528,559.04/729,232.80 = 302,043.20/x
  3. Step 3: Cross multiply
    528,559.04x = 729,232.80 × 302,043.20
  4. Step 4: Simplify right side
    528,559.04x = 220,259,808,456.96
  5. Step 5: Solve for x
    x = 220,259,808,456.96/528,559.04
  6. Step 6: Final answer
    x = 416,717.51

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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.