Home / 877,816.07-1,211,386.20-475,408.07

Finding the Fourth Proportional to 877,816.07, 1,211,386.20 and 475,408.07

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Solution

The fourth proportional to 877,816.07, 1,211,386.20 and 475,408.07 is: 656,063.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,816.07 : 1,211,386.20 = 475,408.07 : x
  2. Step 2: Convert to fraction form
    877,816.07/1,211,386.20 = 475,408.07/x
  3. Step 3: Cross multiply
    877,816.07x = 1,211,386.20 × 475,408.07
  4. Step 4: Simplify right side
    877,816.07x = 575,902,769,309.70
  5. Step 5: Solve for x
    x = 575,902,769,309.70/877,816.07
  6. Step 6: Final answer
    x = 656,063.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.