Home / 652,020.40-976,864.20-402,410.80

Finding the Fourth Proportional to 652,020.40, 976,864.20 and 402,410.80

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Solution

The fourth proportional to 652,020.40, 976,864.20 and 402,410.80 is: 602,896.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,020.40 : 976,864.20 = 402,410.80 : x
  2. Step 2: Convert to fraction form
    652,020.40/976,864.20 = 402,410.80/x
  3. Step 3: Cross multiply
    652,020.40x = 976,864.20 × 402,410.80
  4. Step 4: Simplify right side
    652,020.40x = 393,100,704,213.36
  5. Step 5: Solve for x
    x = 393,100,704,213.36/652,020.40
  6. Step 6: Final answer
    x = 602,896.33

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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.