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Finding the Fourth Proportional to 528,891.42, 729,870.17 and 302,536.92

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Solution

The fourth proportional to 528,891.42, 729,870.17 and 302,536.92 is: 417,500.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,891.42 : 729,870.17 = 302,536.92 : x
  2. Step 2: Convert to fraction form
    528,891.42/729,870.17 = 302,536.92/x
  3. Step 3: Cross multiply
    528,891.42x = 729,870.17 × 302,536.92
  4. Step 4: Simplify right side
    528,891.42x = 220,812,671,718.99
  5. Step 5: Solve for x
    x = 220,812,671,718.99/528,891.42
  6. Step 6: Final answer
    x = 417,500.95

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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.