Home / 1,585,776-2,378,642.72-387,708.64

Finding the Fourth Proportional to 1,585,776, 2,378,642.72 and 387,708.64

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Solution

The fourth proportional to 1,585,776, 2,378,642.72 and 387,708.64 is: 581,557.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585,776 : 2,378,642.72 = 387,708.64 : x
  2. Step 2: Convert to fraction form
    1,585,776/2,378,642.72 = 387,708.64/x
  3. Step 3: Cross multiply
    1,585,776x = 2,378,642.72 × 387,708.64
  4. Step 4: Simplify right side
    1,585,776x = 922,220,334,017.10
  5. Step 5: Solve for x
    x = 922,220,334,017.10/1,585,776
  6. Step 6: Final answer
    x = 581,557.76

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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.