Home / 990,078.32-1,366,309.44-537,369.36

Finding the Fourth Proportional to 990,078.32, 1,366,309.44 and 537,369.36

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Solution

The fourth proportional to 990,078.32, 1,366,309.44 and 537,369.36 is: 741,570.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,078.32 : 1,366,309.44 = 537,369.36 : x
  2. Step 2: Convert to fraction form
    990,078.32/1,366,309.44 = 537,369.36/x
  3. Step 3: Cross multiply
    990,078.32x = 1,366,309.44 × 537,369.36
  4. Step 4: Simplify right side
    990,078.32x = 734,212,829,334.76
  5. Step 5: Solve for x
    x = 734,212,829,334.76/990,078.32
  6. Step 6: Final answer
    x = 741,570.45

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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.