Home / 877,296.60-1,315,288.80-478,387.80

Finding the Fourth Proportional to 877,296.60, 1,315,288.80 and 478,387.80

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Solution

The fourth proportional to 877,296.60, 1,315,288.80 and 478,387.80 is: 717,223.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,296.60 : 1,315,288.80 = 478,387.80 : x
  2. Step 2: Convert to fraction form
    877,296.60/1,315,288.80 = 478,387.80/x
  3. Step 3: Cross multiply
    877,296.60x = 1,315,288.80 × 478,387.80
  4. Step 4: Simplify right side
    877,296.60x = 629,218,115,396.64
  5. Step 5: Solve for x
    x = 629,218,115,396.64/877,296.60
  6. Step 6: Final answer
    x = 717,223.93

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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.