Home / 877,535.25-1,315,307.79-403,240.56

Finding the Fourth Proportional to 877,535.25, 1,315,307.79 and 403,240.56

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Solution

The fourth proportional to 877,535.25, 1,315,307.79 and 403,240.56 is: 604,403.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,535.25 : 1,315,307.79 = 403,240.56 : x
  2. Step 2: Convert to fraction form
    877,535.25/1,315,307.79 = 403,240.56/x
  3. Step 3: Cross multiply
    877,535.25x = 1,315,307.79 × 403,240.56
  4. Step 4: Simplify right side
    877,535.25x = 530,385,449,811.96
  5. Step 5: Solve for x
    x = 530,385,449,811.96/877,535.25
  6. Step 6: Final answer
    x = 604,403.58

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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.