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Finding the Fourth Proportional to 528,510.42, 729,334.26 and 299,063.51

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Solution

The fourth proportional to 528,510.42, 729,334.26 and 299,063.51 is: 412,701.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,510.42 : 729,334.26 = 299,063.51 : x
  2. Step 2: Convert to fraction form
    528,510.42/729,334.26 = 299,063.51/x
  3. Step 3: Cross multiply
    528,510.42x = 729,334.26 × 299,063.51
  4. Step 4: Simplify right side
    528,510.42x = 218,117,262,847.19
  5. Step 5: Solve for x
    x = 218,117,262,847.19/528,510.42
  6. Step 6: Final answer
    x = 412,701.92

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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.