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Finding the Fourth Proportional to 524,998.40, 788,080.80 and 288,802.40

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Solution

The fourth proportional to 524,998.40, 788,080.80 and 288,802.40 is: 433,524.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,998.40 : 788,080.80 = 288,802.40 : x
  2. Step 2: Convert to fraction form
    524,998.40/788,080.80 = 288,802.40/x
  3. Step 3: Cross multiply
    524,998.40x = 788,080.80 × 288,802.40
  4. Step 4: Simplify right side
    524,998.40x = 227,599,626,433.92
  5. Step 5: Solve for x
    x = 227,599,626,433.92/524,998.40
  6. Step 6: Final answer
    x = 433,524.42

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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.