Home / 779,381.89-1,075,240.99-452,639.28

Finding the Fourth Proportional to 779,381.89, 1,075,240.99 and 452,639.28

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Solution

The fourth proportional to 779,381.89, 1,075,240.99 and 452,639.28 is: 624,464.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,381.89 : 1,075,240.99 = 452,639.28 : x
  2. Step 2: Convert to fraction form
    779,381.89/1,075,240.99 = 452,639.28/x
  3. Step 3: Cross multiply
    779,381.89x = 1,075,240.99 × 452,639.28
  4. Step 4: Simplify right side
    779,381.89x = 486,696,307,540.09
  5. Step 5: Solve for x
    x = 486,696,307,540.09/779,381.89
  6. Step 6: Final answer
    x = 624,464.48

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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.