Home / 874,123.61-1,308,720.20-462,860.98

Finding the Fourth Proportional to 874,123.61, 1,308,720.20 and 462,860.98

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Solution

The fourth proportional to 874,123.61, 1,308,720.20 and 462,860.98 is: 692,986.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,123.61 : 1,308,720.20 = 462,860.98 : x
  2. Step 2: Convert to fraction form
    874,123.61/1,308,720.20 = 462,860.98/x
  3. Step 3: Cross multiply
    874,123.61x = 1,308,720.20 × 462,860.98
  4. Step 4: Simplify right side
    874,123.61x = 605,755,508,731.69
  5. Step 5: Solve for x
    x = 605,755,508,731.69/874,123.61
  6. Step 6: Final answer
    x = 692,986.10

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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.