Home / 877,675.60-1,315,455-403,711.12

Finding the Fourth Proportional to 877,675.60, 1,315,455 and 403,711.12

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Solution

The fourth proportional to 877,675.60, 1,315,455 and 403,711.12 is: 605,079.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,675.60 : 1,315,455 = 403,711.12 : x
  2. Step 2: Convert to fraction form
    877,675.60/1,315,455 = 403,711.12/x
  3. Step 3: Cross multiply
    877,675.60x = 1,315,455 × 403,711.12
  4. Step 4: Simplify right side
    877,675.60x = 531,063,811,359.60
  5. Step 5: Solve for x
    x = 531,063,811,359.60/877,675.60
  6. Step 6: Final answer
    x = 605,079.84

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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.