Home / 877,361.45-1,210,551.32-509,620.08

Finding the Fourth Proportional to 877,361.45, 1,210,551.32 and 509,620.08

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Solution

The fourth proportional to 877,361.45, 1,210,551.32 and 509,620.08 is: 703,155.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,361.45 : 1,210,551.32 = 509,620.08 : x
  2. Step 2: Convert to fraction form
    877,361.45/1,210,551.32 = 509,620.08/x
  3. Step 3: Cross multiply
    877,361.45x = 1,210,551.32 × 509,620.08
  4. Step 4: Simplify right side
    877,361.45x = 616,921,257,994.41
  5. Step 5: Solve for x
    x = 616,921,257,994.41/877,361.45
  6. Step 6: Final answer
    x = 703,155.19

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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.